CVE-2007-4999: Pidgin

Medium severity, CVSS 4.3. EPSS: 1.8% chance of exploitation in the next 30 days.

libpurple in Pidgin 2.1.0 through 2.2.1, when using HTML logging, allows remote attackers to cause a denial of service (NULL dereference and application crash) via a message that contains invalid HTML data, a different vector than CVE-2007-4996.

Affected products

• Pidgin Pidgin: version 2.1.0 only; version 2.2.0 only; version 2.2.1 only

Published 2007-10-29. Last modified 2026-06-16.