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Status published
Medium
CVE-2021-3843
A potential vulnerability in the SMI function to access EEPROM...
Vulnerability Description
A potential vulnerability in the SMI function to access EEPROM in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Lenovo thanks Jiawei Yin(@yngweijw) and Menghao Li of IIE varas.
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Affected Vendor
Lenovo
View all reports →Affected Software
ThinkPad BIOS
Vulnerable Versions:
various
Timeline
Official Publish:
November 12th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H