CVE-2011-2701: Freeradius

Medium severity, CVSS 5.8. EPSS: 1.8% chance of exploitation in the next 30 days.

The ocsp_check function in rlm_eap_tls.c in FreeRADIUS 2.1.11, when OCSP is enabled, does not properly parse replies from OCSP responders, which allows remote attackers to bypass authentication by using the EAP-TLS protocol with a revoked X.509 client certificate.

Affected products

• Freeradius Freeradius: version 2.1.11 only

Published 2011-08-04. Last modified 2026-06-16.