CVE-2019-13456: Freeradius

Medium severity, CVSS 6.5. EPSS: 1.8% chance of exploitation in the next 30 days.

In FreeRADIUS 3.0 through 3.0.19, on average 1 in every 2048 EAP-pwd handshakes fails because the password element cannot be found within 10 iterations of the hunting and pecking loop. This leaks information that an attacker can use to recover the password of any user. This information leakage is similar to the "Dragonblood" attack and CVE-2019-9494.

Affected products

• Freeradius Freeradius: from 3.0.0, up to and including 3.0.19
• Opensuse Leap: version 15.1 only
• Red Hat Enterprise Linux: version 7.0 only; version 8.0 only

Published 2019-12-03. Last modified 2026-06-17.