CVE-2025-59529 — Uncontrolled Resource Consumption in Avahi
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 88.39%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 18
Description
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions up to and including 0.9-rc2, the simple protocol server ignores the documented client limit and accepts unlimited connections, allowing for easy local DoS. Although `CLIENTS_MAX` is defined, `server_work()` unconditionally `accept()`s and `client_new()` always appends the new client and increments `n_clients`. There is no check against the limit. When client cannot be accepted…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages8 packages
Patches
🔴Vulnerability Details
1OSV▶
CVE-2025-59529: Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite↗2025-12-18