CVE-2025-13946 (GCVE-0-2025-13946)

Vulnerability from cvelistv5 – Published: 2025-12-03 08:04 – Updated: 2026-03-27 13:56
VLAI
Title
Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
Summary
MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.1 (semver)
Affected: 4.4.0 , < 4.4.11 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-13946",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-03T14:28:11.099019Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-03T14:28:19.274Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Wireshark",
          "vendor": "Wireshark Foundation",
          "versions": [
            {
              "lessThan": "4.6.1",
              "status": "affected",
              "version": "4.6.0",
              "versionType": "semver"
            },
            {
              "lessThan": "4.4.11",
              "status": "affected",
              "version": "4.4.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-27T13:56:58.594Z",
        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "url": "https://www.wireshark.org/security/wnpa-sec-2025-08.html"
        },
        {
          "name": "GitLab Issue #20884",
          "tags": [
            "issue-tracking",
            "permissions-required"
          ],
          "url": "https://gitlab.com/wireshark/wireshark/-/issues/20884"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to version 4.6.2, 4.4.12, or above"
        }
      ],
      "title": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027) in Wireshark"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2025-13946",
    "datePublished": "2025-12-03T08:04:54.335Z",
    "dateReserved": "2025-12-03T07:33:42.822Z",
    "dateUpdated": "2026-03-27T13:56:58.594Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-13946",
      "date": "2026-06-21",
      "epss": "0.00124",
      "percentile": "0.02486"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-13946\",\"sourceIdentifier\":\"cve@gitlab.com\",\"published\":\"2025-12-03T08:15:48.180\",\"lastModified\":\"2025-12-31T01:14:22.890\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@gitlab.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"cve@gitlab.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-835\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.4.0\",\"versionEndExcluding\":\"4.4.12\",\"matchCriteriaId\":\"BA7C466B-F5CC-44F8-9459-B5F492F8B7BA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.6.0\",\"versionEndExcluding\":\"4.6.2\",\"matchCriteriaId\":\"7D2DBF83-3165-4923-A832-C962C1E3DF6F\"}]}]}],\"references\":[{\"url\":\"https://gitlab.com/wireshark/wireshark/-/issues/20884\",\"source\":\"cve@gitlab.com\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://www.wireshark.org/security/wnpa-sec-2025-08.html\",\"source\":\"cve@gitlab.com\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-13946\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-12-03T14:28:11.099019Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-12-03T14:28:15.659Z\"}}], \"cna\": {\"title\": \"Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027) in Wireshark\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"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\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Wireshark Foundation\", \"product\": \"Wireshark\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.6.0\", \"lessThan\": \"4.6.1\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"4.4.0\", \"lessThan\": \"4.4.11\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unknown\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Upgrade to version 4.6.2, 4.4.12, or above\"}], \"references\": [{\"url\": \"https://www.wireshark.org/security/wnpa-sec-2025-08.html\"}, {\"url\": \"https://gitlab.com/wireshark/wireshark/-/issues/20884\", \"name\": \"GitLab Issue #20884\", \"tags\": [\"issue-tracking\", \"permissions-required\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-835\", \"description\": \"CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"ceab7361-8a18-47b1-92ba-4d7d25f6715a\", \"shortName\": \"GitLab\", \"dateUpdated\": \"2026-03-27T13:56:58.594Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-13946\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-27T13:56:58.594Z\", \"dateReserved\": \"2025-12-03T07:33:42.822Z\", \"assignerOrgId\": \"ceab7361-8a18-47b1-92ba-4d7d25f6715a\", \"datePublished\": \"2025-12-03T08:04:54.335Z\", \"assignerShortName\": \"GitLab\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.