CVE-2009-1374: Pidgin

Medium severity, CVSS 5.0. EPSS: 2.5% chance of exploitation in the next 30 days.

Buffer overflow in the decrypt_out function in Pidgin (formerly Gaim) before 2.5.6 allows remote attackers to cause a denial of service (application crash) via a QQ packet.

Affected products

• Pidgin Pidgin: up to and including 2.5.5; version 2.0.0 only; version 2.0.1 only; version 2.0.2 only; version 2.1.0 only; version 2.1.1 only; …

Published 2009-05-26. Last modified 2026-06-16.