Vulnerability · Published Jan 12, 2026 · Assigned by GitHub_M

CVE-2025-68276Avahi has a reachable assertion in avahi_wide_area_scan_cache

Medium 5.5

In plain English

A medium-severity security flaw in avahi from avahi. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.2%top 95.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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, an unprivileged local users can crash avahi-daemon (with wide-area disabled) by creating record browsers with the AVAHI_LOOKUP_USE_WIDE_AREA flag set via D-Bus. This can be done by either calling the RecordBrowserNew method directly or creating hostname/address/service resolvers/browsers that create those browsers internally themselves.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Alpine:v3.24	avahi	0.8-r25	ALPINE-CVE-2025-68276
Debian:12	avahi	no fix listed	DEBIAN-CVE-2025-68276
Debian:13	avahi	no fix listed	DEBIAN-CVE-2025-68276
Debian:14	avahi	0.8-18	DEBIAN-CVE-2025-68276
Ubuntu:22.04:LTS	avahi	0.8-5ubuntu5.4	UBUNTU-CVE-2025-68276
Ubuntu:24.04:LTS	avahi	0.8-13ubuntu6.1	UBUNTU-CVE-2025-68276
Ubuntu:25.10	avahi	0.8-16ubuntu3.1	UBUNTU-CVE-2025-68276

Affected products (as reported)

Vendor	Product	Versions
avahi	avahi	<= 0.9-rc2

Weakness: CWE-617 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/avahi/avahi/security/advisories/GHSA-mhf3-865v-g5rc x_refsource_CONFIRM
https://github.com/avahi/avahi/pull/806 x_refsource_MISC
https://github.com/avahi/avahi/commit/ede7048475c5d47d53890e3bc1350dda8e0b3688 x_refsource_MISC