CVE Vulnerabilities

CVE-2021-3897

Authentication Bypass Using an Alternate Path or Channel

Published: Apr 22, 2022 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

A product requires authentication, but the product has an alternate path or channel that does not require authentication.

Affected Software

Name Vendor Start Version End Version
Nextscale_n1200_enclosure_firmware Lenovo * fhet50b-2.90 (excluding)

Potential Mitigations

References