CVE-2025-68468

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.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-617"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68468.json"
}

References

Affected packages

Git / github.com/avahi/avahi

Affected ranges

Type

GIT

Repo

https://github.com/avahi/avahi

Events

Introduced

8ee3bd6f7921b489bde14f120187a5becf134d30

Fixed

f66be13d7f31a3ef806d226bf8b67240179d309a

Database specific

Show details

{
    "cpe":  "cpe:2.3:a:avahi:avahi:0.9:rc1:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0.9-rc1"
        },
        {
            "last_affected":  "0.9-rc1"
        }
    ],
    "source":  [
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

0.*

0.9-rc1

v0.*

v0.9-rc1

v0.9-rc2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68468.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "49796835103246459673476082991326880087",
                "164963310503298087533845724241891385937",
                "142593600093123437609357348851716758755",
                "175781122804758308359834821960804872597"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2025-68468-76de3ba8",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a",
        "target":  {
            "file":  "avahi-core/browse.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "230147531993436042411123730074032476695",
            "length":  1290
        },
        "id":  "CVE-2025-68468-bf762a75",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a",
        "target":  {
            "file":  "avahi-core/browse.c",
            "function":  "lookup_multicast_callback"
        }
    }
]

vanir_signatures_modified

"2026-08-12T15:14:53Z"