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CVE-2025-68468

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Date: January 12, 2026

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.

Severity Score

Related Resources (5)

https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52
https://nvd.nist.gov/vuln/detail/CVE-2025-68468
https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a
https://github.com/avahi/avahi/issues/683
https://www.mend.io/vulnerability-database/CVE-2025-68468

Severity Score

Weakness Type (CWE)

Reachable Assertion

CWE-617

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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