CVE-2021-3786 MEDIUM

CVE-2021-3786

Vendor Lenovo
Product Notebook and ThinkPad BIOS
Weakness CWE-20 · Input validation
Published November 12, 2021
Last update August 3, 2024
View on NVD All CVEs

CVSS base score

4.4/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.

Key dates

02Disclosure timeline

November 12, 2021 CVE published
August 3, 2024 Record updated