CVE-2021-3453

State: Published
Severity: 6.8 Medium
Published: Jul 16, 2021
Updated: Dec 16, 2025
Reserved: Mar 19, 2021

Description

Some Lenovo Notebook, ThinkPad, and Lenovo Desktop systems have BIOS modules unprotected by Intel Boot Guard that could allow an attacker with physical access the ability to write to the SPI flash storage.

Scores

CVSS	Score	Vector	Source
3.1	6.8 Medium	CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	lenovo

Weaknesses

CWE-693 Protection Mechanism Failure

Affected Products

Product	Versions
BIOSLenovo	variousAffected

References

https://support.lenovo.com/us/en/product_security/LEN-65529

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