CVE-2025-68468

Avahi has a reachable assertion in lookup_multicast_callback

MEDIUM
6.5
CVSS Score
Published: January 12, 2026 at 05:38 PM UTC
Updated: June 17, 2026 at 09:59 AM UTC
1 product affected across 1 vendorAvahi

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 0.9-rc2v < 0.90.9 rc1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMVendor Advisory
Source: cverecord
https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/avahi/avahi/issues/683

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-617

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