CVE-2021-3452: Lenovo BIOS

Medium severity, CVSS 6.7. EPSS: 0.3% chance of exploitation in the next 30 days.

A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.

Affected products

• Lenovo BIOS: affected versions not specified

Published 2021-07-16. Last modified 2026-06-17.