CVE-2025-68468 (GCVE-0-2025-68468)

Vulnerability from cvelistv5 – Published: 2026-01-12 17:38 – Updated: 2026-01-12 18:41
VLAI?
Title
Avahi has a reachable assertion in lookup_multicast_callback
Summary
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they expire avahi-daemon crashes.
CWE
Assigner
Impacted products
Vendor Product Version
avahi avahi Affected: <= 0.9-rc2
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-68468",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-12T18:41:41.101488Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-12T18:41:50.855Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "avahi",
          "vendor": "avahi",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 0.9-rc2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they expire avahi-daemon crashes."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-617",
              "description": "CWE-617: Reachable Assertion",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-12T17:38:10.492Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52"
        },
        {
          "name": "https://github.com/avahi/avahi/issues/683",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/avahi/avahi/issues/683"
        },
        {
          "name": "https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a"
        }
      ],
      "source": {
        "advisory": "GHSA-cp79-r4x9-vf52",
        "discovery": "UNKNOWN"
      },
      "title": "Avahi has a reachable assertion in lookup_multicast_callback"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-68468",
    "datePublished": "2026-01-12T17:38:10.492Z",
    "dateReserved": "2025-12-18T13:48:59.555Z",
    "dateUpdated": "2026-01-12T18:41:50.855Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68468\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-01-12T18:15:48.173\",\"lastModified\":\"2026-01-12T18:15:48.173\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they expire avahi-daemon crashes.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-617\"}]}],\"references\":[{\"url\":\"https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/avahi/avahi/issues/683\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52\",\"source\":\"security-advisories@github.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-68468\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-12T18:41:41.101488Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-12T18:41:47.044Z\"}}], \"cna\": {\"title\": \"Avahi has a reachable assertion in lookup_multicast_callback\", \"source\": {\"advisory\": \"GHSA-cp79-r4x9-vf52\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/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\"}}], \"affected\": [{\"vendor\": \"avahi\", \"product\": \"avahi\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c= 0.9-rc2\"}]}], \"references\": [{\"url\": \"https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52\", \"name\": \"https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/avahi/avahi/issues/683\", \"name\": \"https://github.com/avahi/avahi/issues/683\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a\", \"name\": \"https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they expire avahi-daemon crashes.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-617\", \"description\": \"CWE-617: Reachable Assertion\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-01-12T17:38:10.492Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-68468\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-12T18:41:50.855Z\", \"dateReserved\": \"2025-12-18T13:48:59.555Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-01-12T17:38:10.492Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

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.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…