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CVE-2021-3453
Published: Jul 16, 2021
Modified: Dec 16, 2025
PUBLISHED
CVSS v3.1
6.8
MEDIUM
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.
| Vendor | Product | Versions |
|---|---|---|
Lenovo | BIOS | affected various |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
References
https://support.lenovo.com/us/en/product_security/LEN-65529
x_refsource_MISC
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