Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.…

cve CVE-2026-45761 1 source, 1 claim · Watch

NVD writes:
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets. the claim

Severity: LOW NVD
CVSS: 3.3 NVD
Vendor: OISF NVD
Product: suricata NVD
CWE: CWE-122 NVD

How far exploitation has got

No public code known
Proof of concept
Proof of concept, verified
A Metasploit module
Exploited in the wild
Used in ransomware campaigns

Timeline

2026-09-10

first spoke of it: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets.

NVD

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets.

What it is to other things

affects	oisf/suricata NVD
made_by	oisf NVD

Every value, with what each source said and its receipt

Property Source Said Means here

Automatable

automatable

NVD

At least one of those steps needs a person.

receipt

Source: NVD
Its words: no
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].automatable
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	no
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "644F8A2A-05FF-4468-A0AA-D0BCF6B5216A",
                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "2A5A6861-85AA-41AF-AF44-E90CA7E48414",
                "versionEndExcluding": "8.0.5",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets."
      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 1.4,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-45761",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-15T15:01:49.482498Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T21:17:27.677",
    "references": [
      {
        "source": "security-advisories@github.com",
        "tags": [
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          "Vendor Advisory"
        ],
        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-122"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

NVD

3.3

receipt

Source: NVD
Its words: 3.3
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "644F8A2A-05FF-4468-A0AA-D0BCF6B5216A",
                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "2A5A6861-85AA-41AF-AF44-E90CA7E48414",
                "versionEndExcluding": "8.0.5",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets."
      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 1.4,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-45761",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-15T15:01:49.482498Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T21:17:27.677",
    "references": [
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-122"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

NVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

receipt

Source: NVD
Its words: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "644F8A2A-05FF-4468-A0AA-D0BCF6B5216A",
                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "2A5A6861-85AA-41AF-AF44-E90CA7E48414",
                "versionEndExcluding": "8.0.5",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets."
      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 1.4,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-45761",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-15T15:01:49.482498Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T21:17:27.677",
    "references": [
      {
        "source": "security-advisories@github.com",
        "tags": [
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          "Vendor Advisory"
        ],
        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-122"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

NVD

CWE-122

receipt

Source: NVD
Its words: CWE-122
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CWE-122
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "644F8A2A-05FF-4468-A0AA-D0BCF6B5216A",
                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "2A5A6861-85AA-41AF-AF44-E90CA7E48414",
                "versionEndExcluding": "8.0.5",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets."
      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 1.4,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-45761",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-15T15:01:49.482498Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T21:17:27.677",
    "references": [
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-122"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Exploitation

exploitation

NVD

none

No evidence of exploitation, and no public proof of concept.

receipt

Source: NVD
Its words: none
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].exploitation
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	none
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "644F8A2A-05FF-4468-A0AA-D0BCF6B5216A",
                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "2A5A6861-85AA-41AF-AF44-E90CA7E48414",
                "versionEndExcluding": "8.0.5",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets."
      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 1.4,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-15T15:01:49.482498Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T21:17:27.677",
    "references": [
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-122"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Product

product

NVD

suricata

receipt

Source: NVD
Its words: suricata
Read by: field:cve.affected[].affectedData[].product
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	suricata
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
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                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "2A5A6861-85AA-41AF-AF44-E90CA7E48414",
                "versionEndExcluding": "8.0.5",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets."
      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
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        {
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          },
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          "impactScore": 1.4,
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      ],
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            ],
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    },
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      {
        "source": "security-advisories@github.com",
        "tags": [
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          "Vendor Advisory"
        ],
        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
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          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Severity

severity

NVD

LOW

From 0.1 to 3.9.

receipt

Source: NVD
Its words: LOW
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	LOW
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
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                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "644F8A2A-05FF-4468-A0AA-D0BCF6B5216A",
                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
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                "versionEndExcluding": "8.0.5",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets."
      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
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          "impactScore": 1.4,
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          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-45761",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-15T15:01:49.482498Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T21:17:27.677",
    "references": [
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
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            "value": "CWE-122"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

low

Status

status

NVD

Analyzed

receipt

Source: NVD
Its words: Analyzed
Read by: field:cve.vulnStatus
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "644F8A2A-05FF-4468-A0AA-D0BCF6B5216A",
                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "2A5A6861-85AA-41AF-AF44-E90CA7E48414",
                "versionEndExcluding": "8.0.5",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets."
      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 1.4,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-45761",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
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            "timestamp": "2026-09-15T15:01:49.482498Z",
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          }
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    },
    "published": "2026-09-10T21:17:27.677",
    "references": [
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
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            "value": "CWE-122"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Technical impact

technical_impact

NVD

partial

The attacker gains limited control, or limited information.

receipt

Source: NVD
Its words: partial
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	partial
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "644F8A2A-05FF-4468-A0AA-D0BCF6B5216A",
                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "2A5A6861-85AA-41AF-AF44-E90CA7E48414",
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                "versionStartIncluding": "8.0.0",
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              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
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      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
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          "impactScore": 1.4,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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            "options": [
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            "timestamp": "2026-09-15T15:01:49.482498Z",
            "version": "2.0.3"
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    "published": "2026-09-10T21:17:27.677",
    "references": [
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
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        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
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        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-122"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Vendor

vendor

NVD

OISF

receipt

Source: NVD
Its words: OISF
Read by: field:cve.affected[].affectedData[].vendor
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	OISF
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "suricata",
            "vendor": "OISF",
            "versions": [
              {
                "status": "affected",
                "version": ">= 8.0.0, < 8.0.5"
              },
              {
                "status": "affected",
                "version": "< 7.0.16"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "644F8A2A-05FF-4468-A0AA-D0BCF6B5216A",
                "versionEndExcluding": "7.0.16",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "2A5A6861-85AA-41AF-AF44-E90CA7E48414",
                "versionEndExcluding": "8.0.5",
                "versionStartIncluding": "8.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets."
      }
    ],
    "id": "CVE-2026-45761",
    "lastModified": "2026-09-16T20:17:47.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 1.4,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-45761",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-15T15:01:49.482498Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T21:17:27.677",
    "references": [
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm"
      },
      {
        "source": "security-advisories@github.com",
        "tags": [
          "Permissions Required"
        ],
        "url": "https://redmine.openinfosecfoundation.org/issues/8526"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-122"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

zetlyn/cve-nvd · 2026-09-10

automatable no cvss 3.3 cvss_vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L cwe CWE-122 exploitation none product suricata severity LOW status Analyzed technical_impact partial vendor OISF

source