CVE Vulnerabilities

CVE-2021-3971

Active Debug Code

Published: Apr 22, 2022 | Modified: Nov 21, 2024
CVSS 3.x
6.7
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
4.6 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
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A potential vulnerability by a driver used during older manufacturing processes on some consumer Lenovo Notebook devices that was mistakenly included in the BIOS image could allow an attacker with elevated privileges to modify firmware protection region by modifying an NVRAM variable.

Weakness

The product is released with debugging code still enabled or active.

Affected Software

NameVendorStart VersionEnd Version
Ideapad_3-14ada05_firmwareLenovo*e8cn33ww (excluding)

Potential Mitigations

References