Allocation of Resources Without Limits or Throttling in Avahi - CVE-2025-59529
Published: December 19, 2025 / Updated: April 9, 2026
Vulnerability identifier: #VU120227
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-2025-59529
CWE-ID: CWE-770
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 perform a denial of service attack.
The vulnerability exists due to the application ignores the documented client limit and accepts unlimited connections. A local user can initiate multiple socket connections, exhaust daemon memory and file descriptors and perform a denial of service attack.
How to mitigate CVE-2025-59529
Install update from vendor's website.