CVE-2021-26344 Information

Description

An out of bounds memory write when processing the AMD PSP1 Configuration Block (APCB) could allow an attacker with access the ability to modify the BIOS image and the ability to sign the resulting image to potentially modify the APCB block resulting in arbitrary code execution.

Reference

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html