CVE-2011-4966: Freeradius

Medium severity, CVSS 6.0. EPSS: 1.4% chance of exploitation in the next 30 days.

modules/rlm_unix/rlm_unix.c in FreeRADIUS before 2.2.0, when unix mode is enabled for user authentication, does not properly check the password expiration in /etc/shadow, which allows remote authenticated users to authenticate using an expired password.

Affected products

• Freeradius Freeradius: any version; up to and including 2.2.0; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; …

Published 2013-03-12. Last modified 2026-06-16.