CVE-2010-4528: Pidgin Libpurple

Medium severity, CVSS 4.0. EPSS: 2.5% chance of exploitation in the next 30 days.

directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.

Affected products

• Pidgin Libpurple: version 2.7.6 only; version 2.7.7 only; version 2.7.8 only
• Pidgin Pidgin: up to and including 2.7.8; 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 2011-01-07. Last modified 2026-06-16.