CVE-2021-26402

 

Published at: - 11-01-2023 09:15

Last modified: - 25-01-2023 07:04

Total changes: - 3

Description

Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

 

Keywords

NVD

 

CVE-2021-26402

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures