Vulnerability in Avahi
CVE-2025-68471
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 2 unsolicited announcements with CNAME resource records 2 seconds a…
EPSS: 0.004 (27.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Avahi — versions 0.9, <= 0.9-rc2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Patch, Vendor Advisory)
- security-advisories@github.com (Exploit, Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-68471?
- CVE-2025-68471 is a medium-severity vulnerability in Avahi, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-01-12.
- How severe is CVE-2025-68471?
- Medium severity. CVSS v3 base score is 6.5 out of 10.