AMD Ryzen Pro 3900 Firmware vulnerabilities

6 CVEs affecting AMD Ryzen Pro 3900 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2023-20571, published 2023-11-14.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2020-12965, published 2022-02-04. High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days. When combined with specific software sequences, AMD CPUs may transiently execute non-canonical loads and store using only the lower 48 address bits potentially resulting in data leakage.
CVE-2023-20571, published 2023-11-14. High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days. A race condition in System Management Mode (SMM) code may allow an attacker using a compromised user space to leverage CVE-2018-8897 potentially resulting in privilege escalation.
CVE-2021-26337, published 2021-11-16. Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days. Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA read from invalid DRAM address to SRAM resulting in SMU not servicing further requests.
CVE-2021-26346, published 2023-01-11. Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days. Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential…
CVE-2023-20565, published 2023-11-14. High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days. Insufficient protections in System Management Mode (SMM) code may allow an attacker to potentially enable escalation of privilege via local access.
CVE-2023-20563, published 2023-11-14. High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days. Insufficient protections in System Management Mode (SMM) code may allow an attacker to potentially enable escalation of privilege via local access.