The vulnerability affects the implementation of the AMD Secure Processor technology in CPUs such as Ryzen, Ryzen Pro, Ryzen Mobile, and EPYC Server. This allows malicious code to be injected into a computer’s BIOS.

The vulnerability of AMD Secure Processor-based processors, such as Ryzen, Ryzen Pro, Ryzen Mobile, and EPYC Server, stems from the absence of a mechanism for detecting damage to flash memory contents. Exploiting this vulnerability allows an attacker who has access to the targeted computer and...