CVE-2020-27743: Pam Tacplus Project Pam Tacplus

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

libtac in pam_tacplus through 1.5.1 lacks a check for a failure of RAND_bytes()/RAND_pseudo_bytes(). This could lead to use of a non-random/predictable session_id.

Affected products

• Pam Tacplus Project Pam Tacplus: up to and including 1.5.1

Published 2020-10-26. Last modified 2026-06-17.