Vulnerability in Avahi
CVE-2025-68276
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (4.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Avahi — versions 0.9, <= 0.9-rc2
Weakness classification (CWE)
References
- github.com/avahi/avahi/security/advisories/GHSA-mhf3-865v-g5rc (Vendor Advisory)
- github.com/avahi/avahi/pull/806 (Patch, Issue Tracking)
- github.com/avahi/avahi/commit/ede7048475c5d47d53890e3bc1350dda8e0b3688 (Patch)
Frequently asked questions
- What is CVE-2025-68276?
- CVE-2025-68276 is a medium-severity vulnerability in Avahi, classified under Reachable Assertion. CVSS score: 5.5/10. Published 2026-01-12.
- How severe is CVE-2025-68276?
- Medium severity. CVSS v3 base score is 5.5 out of 10.