CVE-2011-5129: Xchat

Medium severity, CVSS 5.0. EPSS: 7.7% chance of exploitation in the next 30 days.

Heap-based buffer overflow in XChat 2.8.9 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long response string.

Affected products

• Xchat Xchat: up to and including 2.8.9; version 1.2.1 only; version 1.3.9 only; version 1.3.10 only; version 1.3.11 only; version 1.3.12 only; …

Published 2012-08-30. Last modified 2026-06-16.