CVE-2021-26367: AMD Athlon Gold 3150c Firmware

Medium severity, CVSS 6.0. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

AMD Athlon Gold 3150c Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Athlon Gold 3150g Firmware: before comboam4pi_1.0.0.9 (fixed in comboam4pi_1.0.0.9)
AMD Athlon Gold 3150u Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Athlon Gold Pro 3150g Firmware: before comboam4pi_1.0.0.9 (fixed in comboam4pi_1.0.0.9)
AMD Athlon Gold Pro 3150ge Firmware: before comboam4pi_1.0.0.9 (fixed in comboam4pi_1.0.0.9)
AMD Athlon Pro 300ge Firmware: before comboam4pi_1.0.0.9 (fixed in comboam4pi_1.0.0.9)
AMD Athlon Pro 3045b Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Athlon Pro 3145b Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Athlon Silver 3050c Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Athlon Silver 3050e Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Athlon Silver 3050u Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Radeon Software: before 23.12.1 (fixed in 23.12.1); up to and including 23.q4
AMD Ryzen 3 3300u Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Ryzen 3 3350u Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Ryzen 3 4300g Firmware: before comboam4v2_pi_1.2.0.5 (fixed in comboam4v2_pi_1.2.0.5)
AMD Ryzen 3 4300ge Firmware: before comboam4v2_pi_1.2.0.5 (fixed in comboam4v2_pi_1.2.0.5)
AMD Ryzen 3 5300g Firmware: before comboam4v2_pi_1.2.0.5 (fixed in comboam4v2_pi_1.2.0.5)
AMD Ryzen 3 5300ge Firmware: before comboam4v2_pi_1.2.0.5 (fixed in comboam4v2_pi_1.2.0.5)
AMD Ryzen 5 3450u Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Ryzen 5 3500c Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Ryzen 5 3500u Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Ryzen 5 3550h Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Ryzen 5 3580u Firmware: before picassopi-fp5_1.0.0.e (fixed in picassopi-fp5_1.0.0.e)
AMD Ryzen 5 4600g Firmware: before comboam4v2_pi_1.2.0.5 (fixed in comboam4v2_pi_1.2.0.5)
AMD Ryzen 5 4600ge Firmware: before comboam4v2_pi_1.2.0.5 (fixed in comboam4v2_pi_1.2.0.5)
and 11 more

Published 2024-08-13. Last modified 2026-06-17.