strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after i…

cve CVE-2026-78124 1 source, 1 claim · Watch

NVD writes:
strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime. the claim

Severity: LOW NVD
CVSS: 3.7 NVD
Fixed in: 6.1.0 NVD
Vendor: strongSwan NVD
Product: strongSwan NVD
CWE: CWE-401 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

2026-09-11

first spoke of it: strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime.

NVD

strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime.

What it is to other things

affects	strongswan/strongswan NVD
made_by	strongswan 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": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

NVD

3.7

receipt

Source: NVD
Its words: 3.7
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": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

NVD

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

receipt

Source: NVD
Its words: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
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:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

NVD

CWE-401

receipt

Source: NVD
Its words: CWE-401
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-401
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "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": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  }
}

—

Fixed in

fixed_in

NVD

6.1.0

receipt

Source: NVD
Its words: 6.1.0
Read by: field:cve.affected[].affectedData[].versions[status=affected].lessThan
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	6.1.0
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  }
}

—

Product

product

NVD

strongSwan

receipt

Source: NVD
Its words: strongSwan
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	strongSwan
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "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": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "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": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "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": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  }
}

—

Vendor

vendor

NVD

strongSwan

receipt

Source: NVD
Its words: strongSwan
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	strongSwan
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "strongSwan",
            "vendor": "strongSwan",
            "versions": [
              {
                "lessThan": "6.1.0",
                "status": "affected",
                "version": "5.0.2",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D71DC666-04F7-4CF3-ADA7-4B13E283AC85",
                "versionEndExcluding": "6.1.0",
                "versionStartIncluding": "5.0.2",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime."
      }
    ],
    "id": "CVE-2026-78124",
    "lastModified": "2026-09-14T20:09:47.260",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4,
          "source": "cve@mitre.org",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78124",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T20:05:14.510796Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-11T02:18:33.770",
    "references": [
      {
        "source": "cve@mitre.org",
        "tags": [
          "Patch",
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://github.com/strongswan/strongswan/releases/tag/6.1.0"
      },
      {
        "source": "cve@mitre.org",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
        "url": "https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78124).html"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-401"
          }
        ],
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime.

zetlyn/cve-nvd · 2026-09-11

automatable no cvss 3.7 cvss_vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N cwe CWE-401 exploitation none fixed_in 6.1.0 product strongSwan severity LOW status Analyzed technical_impact partial vendor strongSwan

source