PT-2022-2546 · Lenovo · Lenovo Notebook

Published 2022-01-24 · Updated 2022-05-11 · CVE-2021-4212

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Lenovo Notebook models (affected versions not specified)

Description A potential issue in the SMI callback function used in the Legacy BIOS mode driver may allow an attacker with local access and elevated privileges to execute arbitrary code. The issue is related to insufficient input validation, which can be exploited to gain elevated privileges.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2022-02965

CVE-2021-4212

Affected Products

Lenovo Notebook

References · 6

• https://support.lenovo.com/us/en/product_security/LEN-77639 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02965 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-4212 · Security Note
• https://vuldb.com/?id.198432 · Note
• https://t.me/cvenotify/30052 · Telegram Post
• https://t.me/cibsecurity/41358 · Telegram Post