Reachable assertion in Avahi - CVE-2025-68276
Published: April 24, 2026
Vulnerability identifier: #VU127431
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-68276
CWE-ID: CWE-617
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: avahi.org
Affected software:
Avahi
Avahi
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to reachable assertion in avahi_wide_area_scan_cache when creating a record browser with the AVAHI_LOOKUP_USE_WIDE_AREA flag while wide-area is disabled. A local user can create a crafted record browser request to cause a denial of service.
The issue causes avahi-daemon to terminate with SIGABRT.
How to mitigate CVE-2025-68276
Install security update from vendor's website.