CVE-2021-3897 CRITICAL

CVE-2021-3897

Vendor Lenovo
Product Fan Power Controller2 (FPC2)
Weakness CWE-288
Published April 22, 2022
Last update August 3, 2024
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 22, 2022 CVE published
August 3, 2024 Record updated