CVE-2023-20579

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

CVE-2021-26367

A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.