Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM.

An attacker with specialized hardware and physical access to an impacted device may be able to perform a voltage fault injection attack resulting in compromise of the ASP secure boot potentially leading to arbitrary code execution.

Improper Access Control in the AMD SPI protection feature may allow a user with Ring0 (kernel mode) privileged access to bypass protections potentially resulting in loss of integrity and availability.

AMD Ryzen, Gen AMD EPYC Processors could allow a local authenticated attacker to obtain sensitive information, caused by a use-after-free flaw in the vzeroupper instruction. By conducting a cache timing attack using a specially crafted application, an attacker could exploit this vulnerability to obtain sensitive data used by other processes, such as passwords and encryption keys, at a rate of 30KB/sec from each CPU core.