CVE-2021-3599

MEDIUM

Lenovo ThinkPad Firmware - Authenticated Arbitrary Code Execution via SMI Callback Function

Title source: llm
STIX 2.1

Description

A potential vulnerability in the SMI callback function used to access flash device in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.

References (1)

Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://support.lenovo.com/us/en/product_security/LEN-67440

Scores

CVSS v3 6.7
EPSS 0.0004
EPSS Percentile 11.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-20
Status published
Products (50)
lenovo/ideapad_s940-14iwl_firmware < 12.0.81.1753
lenovo/ideapad_yoga_s940-14iwl_firmware < 12.0.81.1753
lenovo/thinkpad_10_firmware < 2021-10-25
lenovo/thinkpad_11e_3rd_gen_firmware < 2021-10-31
lenovo/thinkpad_11e_4th_gen_firmware < 2021-10-31
lenovo/thinkpad_11e_yoga_gen_6_firmware < 2021-10-31
lenovo/thinkpad_13_gen_2_firmware < 2021-10-31
lenovo/thinkpad_25_firmware < n1qet92w
lenovo/thinkpad_e14_firmware < 2021-10-15
lenovo/thinkpad_e14_gen_2_firmware < 2021-10-15
... and 40 more
Published Nov 12, 2021
Tracked Since Feb 18, 2026