CVE-2021-42056: Thalesgroup Safenet Authentication Client

Medium severity, CVSS 6.7. EPSS: 1% chance of exploitation in the next 30 days.

Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.

Affected products

• Thalesgroup Safenet Authentication Client: up to and including 10.7.7

Published 2022-06-24. Last modified 2026-06-17.