CVE-2009-4831: Cerulean Studios Trillian

Medium severity, CVSS 5.8. EPSS: 1.4% chance of exploitation in the next 30 days.

Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication, which allows remote attackers to obtain MSN credentials via a man-in-the-middle attack with a spoofed SSL certificate.

Affected products

• Cerulean Studios Trillian: version 3.1 only

Published 2010-04-29. Last modified 2026-06-16.