CVE-2021-3897

Published: Apr 22, 2022

Modified: Aug 3, 2024

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

Vendor	Product	Versions
Lenovo	Fan Power Controller2 (FPC2)	affected `various`
Lenovo	Lenovo System Management Module (SMM)	affected `various`

Weaknesses (CWE)

CWE-288

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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

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CVE-2021-3897

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References