CVE-2011-5121: Comodo Internet Security

High severity, CVSS 10.0. EPSS: 1.2% chance of exploitation in the next 30 days.

The Antivirus component in Comodo Internet Security before 5.3.175888.1227 does not properly check whether unspecified X.509 certificates are revoked, which has unknown impact and remote attack vectors.

Affected products

• Comodo Comodo Internet Security: up to and including 5.3.174622.1216; version 3.0.14.276 only; version 3.0.15.277 only; version 3.0.16.295 only; version 3.0.17.304 only; version 3.0.18.309 only; …

Published 2012-08-26. Last modified 2026-06-16.