CVE-2021-3897

State: Published
Severity: 9.8 Critical
Published: Apr 22, 2022
Updated: Aug 3, 2024
Reserved: Oct 22, 2021

Description

An authentication bypass vulnerability was discovered in an internal service of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware during an that could allow an unauthenticated attacker to execute commands on the SMM and FPC2. SMM2 is not affected.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	lenovo

Weaknesses

CWE-288 Authentication Bypass Using an Alternate Path or Channel

Affected Products

Product	Versions
Fan Power Controller2 (FPC2)Lenovo	variousAffected
Lenovo System Management Module (SMM)Lenovo	variousAffected

References

https://support.lenovo.com/us/en/product_security/LEN-72615

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