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CVE-2021-3971

MEDIUM
Published 2022-04-22T20:30:38
Actions:

Expert Analysis

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CVSS Score

V3.1
6.7
/10
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.042
probability
of exploitation in the wild

There is a 4.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.882
Higher than 88.2% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Lenovo

Notebook BIOS

Affected Versions:

various

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-v9mm-m35w-j8fm

Advisory Details

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.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-3971
WEB https://support.lenovo.com/us/en/product_security/LEN-73440

Advisory provided by GitHub Security Advisory Database. Published: April 23, 2022, Modified: May 7, 2022

References

https://support.lenovo.com/us/en/product_security/LEN-73440
Published: 2022-04-22T20:30:38
Last Modified: 2024-08-03T17:09:09.596Z
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