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

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

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

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

Affected versions

0.*

0.9-rc1

v0.*

v0.9-rc1

v0.9-rc2

Database specific

vanir_signatures

[
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "49796835103246459673476082991326880087",
                "164963310503298087533845724241891385937",
                "142593600093123437609357348851716758755",
                "175781122804758308359834821960804872597"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2025-68468-76de3ba8",
        "target": {
            "file": "avahi-core/browse.c"
        },
        "source": "https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a",
        "signature_version": "v1"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 1290.0,
            "function_hash": "230147531993436042411123730074032476695"
        },
        "id": "CVE-2025-68468-bf762a75",
        "target": {
            "function": "lookup_multicast_callback",
            "file": "avahi-core/browse.c"
        },
        "source": "https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a",
        "signature_version": "v1"
    }
]

source

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

vanir_signatures_modified

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