CVE-2012-5824: Cerulean Studios Trillian

Medium severity, CVSS 5.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Trillian 5.1.0.19 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, a different vulnerability than CVE-2009-4831.

Affected products

Published 2012-11-04. Last modified 2026-06-16.