CVE-2025-68471

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 2 unsolicited announcements with CNAME resource records 2 seconds apart.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-617"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68471.json"
}

References

Affected packages

Git / github.com/avahi/avahi

Affected ranges

Type

GIT

Repo

https://github.com/avahi/avahi

Events

Introduced

8ee3bd6f7921b489bde14f120187a5becf134d30

Fixed

9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1

Database specific

{
    "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_modified

"2026-07-17T19:37:25Z"

vanir_signatures

[
    {
        "target": {
            "function": "lookup_start",
            "file": "avahi-core/browse.c"
        },
        "digest": {
            "length": 761.0,
            "function_hash": "285681115689231934736972820592826652179"
        },
        "signature_version": "v1",
        "signature_type": "Function",
        "deprecated": false,
        "id": "CVE-2025-68471-8b800984",
        "source": "https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1"
    },
    {
        "target": {
            "file": "avahi-core/browse.c"
        },
        "digest": {
            "line_hashes": [
                "131477049406147028042511519061365218720",
                "69024678338108153641727758570983173709",
                "91183894014825058501342759438232662511",
                "263085132819081757133558578820548525645"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line",
        "deprecated": false,
        "id": "CVE-2025-68471-94d1d7b8",
        "source": "https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1"
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68471.json"