CVE-2023-4857: Lenovo Fan Power Controller

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

An authentication bypass vulnerability was identified in SMM/SMM2 and FPC that could allow an authenticated user to execute certain IPMI calls that could lead to exposure of limited system information.

Affected products

• Lenovo Fan Power Controller
• Lenovo Smm, SMM2, Fpc
• Lenovo System Management Module Firmware

Published 2024-04-15. Last modified 2026-06-17.