AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics

• CVE-2021-26367 Medium 5.7 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 a 0.2%
• CVE-2021-26344 High 7.2 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 im 0.2%
• CVE-2023-31315 High 7.5 Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code ex 0.6%
• CVE-2023-20579 Low 3.4 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. 0.2%