CVE-2011-3354: Quassel-Irc Quassel

Medium severity, CVSS 5.0. EPSS: 2.1% chance of exploitation in the next 30 days.

The CtcpParser::packedReply method in core/ctcpparser.cpp in Quassel before 0.7.3 allows remote attackers to cause a denial of service (crash) via a crafted Client-To-Client Protocol (CTCP) request, as demonstrated in the wild in September 2011.

Affected products

• Quassel-Irc Quassel: up to and including 0.7.2; version 0.3.0 only; version 0.3.1 only; version 0.4.0 only; version 0.4.1 only; version 0.4.2 only; …

Published 2011-10-04. Last modified 2026-06-16.