CVE-2025-68276: Avahi

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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 products

• Avahi Avahi: before 0.9 (fixed in 0.9); version 0.9 only

Published 2026-01-12. Last modified 2026-06-17.