CVE-2010-3711: Pidgin

Medium severity, CVSS 4.0. EPSS: 3.3% chance of exploitation in the next 30 days.

libpurple in Pidgin before 2.7.4 does not properly validate the return value of the purple_base64_decode function, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a crafted message, related to the plugins for MSN, MySpaceIM, XMPP, and Yahoo! and the NTLM authentication support.

Affected products

• Pidgin Pidgin: up to and including 2.7.3; 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 2010-10-28. Last modified 2026-06-16.