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CVE-2026-6869

Status: AnalyzedMedium (5.5)—

WebSocket protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Wireshark — Wireshark

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-6869",
  "cveTags": [],
  "metrics": {
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      {
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          "id": "CVE-2026-6869",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-30T12:46:45.361455Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "source": "cve@gitlab.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@gitlab.com",
      "affectedData": [
        {
          "vendor": "Wireshark Foundation",
          "product": "Wireshark",
          "versions": [
            {
              "status": "affected",
              "version": "4.6.0",
              "lessThan": "4.6.5",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "4.4.0",
              "lessThan": "4.4.15",
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            }
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          "defaultStatus": "unaffected"
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      ]
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  ],
  "published": "2026-04-30T07:16:41.470",
  "references": [
    {
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      "tags": [
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        "Issue Tracking"
      ],
      "source": "cve@gitlab.com"
    },
    {
      "url": "https://www.wireshark.org/security/wnpa-sec-2026-44.html",
      "tags": [
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      ],
      "source": "cve@gitlab.com"
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      "tags": [
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        "Issue Tracking"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cve@gitlab.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1325"
        }
      ]
    }
  ],
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    {
      "lang": "en",
      "value": "WebSocket protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service"
    }
  ],
  "lastModified": "2026-06-17T11:01:27.550",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndIncluding": "4.4.14",
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          ],
          "operator": "OR"
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  "sourceIdentifier": "cve@gitlab.com"
}