CVE-2012-3547: Freeradius

Medium severity, CVSS 6.8. EPSS: 5.7% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the cbtls_verify function in FreeRADIUS 2.1.10 through 2.1.12, when using TLS-based EAP methods, allows remote attackers to cause a denial of service (server crash) and possibly execute arbitrary code via a long "not after" timestamp in a client certificate.

Affected products

• Freeradius Freeradius: version 2.1.10 only; version 2.1.11 only; version 2.1.12 only

Published 2012-09-18. Last modified 2026-06-16.