Description
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been patched in version 0.9-rc4.
Affected products
avahi: avahi
References5
- github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc ExploitPatchVendor Advisory
- github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc ExploitPatchVendor Advisory
- github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657… Patch
- github.com/avahi/avahi/pull/891 Issue TrackingPatch
- www.openwall.com/lists/oss-security/2026/04/11/9 ExploitMailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 11 · as of 12 November 2026
- CWE
- CWE-617
Could this be exploited in your environment?
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