CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

zetlyn/cve-nvd vulnerability cve CVE-2026-95393 known 2026-09-29

https://nvd.nist.gov/vuln/detail/CVE-2026-95393

Properties

cvss4.7
receipt
Source
NVD
Its words
4.7
Read by
field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since
2026-09-29 10:35 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Wireshark",
            "repo": "https://gitlab.com/wireshark/wireshark",
            "vendor": "Wireshark Foundation",
            "versions": [
              {
                "lessThan": "4.6.9",
                "status": "affected",
                "version": "4.6.0",
                "versionType": "semver"
              },
              {
                "lessThan": "4.4.19",
                "status": "affected",
                "version": "4.4.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@gitlab.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service"
      }
    ],
    "id": "CVE-2026-95393",
    "lastModified": "2026-09-29T21:36:39.547",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
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            "availabilityImpact": "HIGH",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
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          "impactScore": 3.6,
          "source": "cve@gitlab.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
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          "ssvcData": {
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              },
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                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T15:46:53.215496Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-29T10:17:15.610",
    "references": [
      {
        "source": "cve@gitlab.com",
        "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21510"
      },
      {
        "source": "cve@gitlab.com",
        "url": "https://www.wireshark.org/security/wnpa-sec-2026-99.html"
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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      }
    ],
    "sourceIdentifier": "cve@gitlab.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
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          {
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            "value": "CWE-122"
          }
        ],
        "source": "cve@gitlab.com",
        "type": "Secondary"
      }
    ]
  }
}
productWireshark
receipt
Source
NVD
Its words
Wireshark
Read by
field:cve.affected[].affectedData[].product
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
2026-09-29 17:49 UTCWireshark
2026-09-29 10:35 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Wireshark",
            "repo": "https://gitlab.com/wireshark/wireshark",
            "vendor": "Wireshark Foundation",
            "versions": [
              {
                "lessThan": "4.6.9",
                "status": "affected",
                "version": "4.6.0",
                "versionType": "semver"
              },
              {
                "lessThan": "4.4.19",
                "status": "affected",
                "version": "4.4.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@gitlab.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service"
      }
    ],
    "id": "CVE-2026-95393",
    "lastModified": "2026-09-29T21:36:39.547",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
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          "impactScore": 3.6,
          "source": "cve@gitlab.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T15:46:53.215496Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-29T10:17:15.610",
    "references": [
      {
        "source": "cve@gitlab.com",
        "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21510"
      },
      {
        "source": "cve@gitlab.com",
        "url": "https://www.wireshark.org/security/wnpa-sec-2026-99.html"
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21510"
      }
    ],
    "sourceIdentifier": "cve@gitlab.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
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          {
            "lang": "en",
            "value": "CWE-122"
          }
        ],
        "source": "cve@gitlab.com",
        "type": "Secondary"
      }
    ]
  }
}
statusAwaiting Analysis
receipt
Source
NVD
Its words
Awaiting Analysis
Read by
field:cve.vulnStatus
Said since
2026-10-02 12:00 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
2026-10-02 12:00 UTCAwaiting Analysis
2026-09-29 10:35 UTCReceived
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Wireshark",
            "repo": "https://gitlab.com/wireshark/wireshark",
            "vendor": "Wireshark Foundation",
            "versions": [
              {
                "lessThan": "4.6.9",
                "status": "affected",
                "version": "4.6.0",
                "versionType": "semver"
              },
              {
                "lessThan": "4.4.19",
                "status": "affected",
                "version": "4.4.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@gitlab.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service"
      }
    ],
    "id": "CVE-2026-95393",
    "lastModified": "2026-09-29T21:36:39.547",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
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            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
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      "ssvcV203": [
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            "timestamp": "2026-09-29T15:46:53.215496Z",
            "version": "2.0.3"
          }
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      ]
    },
    "published": "2026-09-29T10:17:15.610",
    "references": [
      {
        "source": "cve@gitlab.com",
        "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21510"
      },
      {
        "source": "cve@gitlab.com",
        "url": "https://www.wireshark.org/security/wnpa-sec-2026-99.html"
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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      }
    ],
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    "vulnStatus": "Awaiting Analysis",
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            "value": "CWE-122"
          }
        ],
        "source": "cve@gitlab.com",
        "type": "Secondary"
      }
    ]
  }
}
vendorWireshark Foundation
receipt
Source
NVD
Its words
Wireshark Foundation
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
2026-09-29 17:49 UTCWireshark Foundation
2026-09-29 10:35 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Wireshark",
            "repo": "https://gitlab.com/wireshark/wireshark",
            "vendor": "Wireshark Foundation",
            "versions": [
              {
                "lessThan": "4.6.9",
                "status": "affected",
                "version": "4.6.0",
                "versionType": "semver"
              },
              {
                "lessThan": "4.4.19",
                "status": "affected",
                "version": "4.4.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@gitlab.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
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      }
    ],
    "id": "CVE-2026-95393",
    "lastModified": "2026-09-29T21:36:39.547",
    "metrics": {
      "cvssMetricV31": [
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            "confidentialityImpact": "NONE",
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            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
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      },
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        "url": "https://www.wireshark.org/security/wnpa-sec-2026-99.html"
      },
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            "value": "CWE-122"
          }
        ],
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        "type": "Secondary"
      }
    ]
  }
}

Text

CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service