CVE-2021-26382: AMD Ryzen 3 3200u Firmware

Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days.

An attacker with root account privileges can load any legitimately signed firmware image into the Audio Co-Processor (ACP,) irrespective of the respective signing key being declared as usable for authenticating an ACP firmware image, potentially resulting in a denial of service.

Affected products

AMD Ryzen 3 3200u Firmware: before renoirpi-fp6_1.0.0.7 (fixed in renoirpi-fp6_1.0.0.7)
AMD Ryzen 3 3250u Firmware: before renoirpi-fp6_1.0.0.7 (fixed in renoirpi-fp6_1.0.0.7)
AMD Ryzen 3 3300u Firmware: before renoirpi-fp6_1.0.0.7 (fixed in renoirpi-fp6_1.0.0.7)
AMD Ryzen 3 5125c Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 3 5300g Firmware: before comboam4_v2_pi_1.2.0.6c (fixed in comboam4_v2_pi_1.2.0.6c)
AMD Ryzen 3 5300ge Firmware: before comboam4_v2_pi_1.2.0.6c (fixed in comboam4_v2_pi_1.2.0.6c)
AMD Ryzen 3 5400u Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 3 5425c Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 3 5425u Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 5 3500u Firmware: before renoirpi-fp6_1.0.0.7 (fixed in renoirpi-fp6_1.0.0.7)
AMD Ryzen 5 3550h Firmware: before renoirpi-fp6_1.0.0.7 (fixed in renoirpi-fp6_1.0.0.7)
AMD Ryzen 5 3580u Firmware: before renoirpi-fp6_1.0.0.7 (fixed in renoirpi-fp6_1.0.0.7)
AMD Ryzen 5 5560u Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 5 5600g Firmware: before comboam4_v2_pi_1.2.0.6c (fixed in comboam4_v2_pi_1.2.0.6c)
AMD Ryzen 5 5600ge Firmware: before comboam4_v2_pi_1.2.0.6c (fixed in comboam4_v2_pi_1.2.0.6c)
AMD Ryzen 5 5600h Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 5 5600hs Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 5 5600u Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 5 5625c Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 5 5625u Firmware: before cezannepi-fp6_1.0.0.9 (fixed in cezannepi-fp6_1.0.0.9)
AMD Ryzen 7 3700u Firmware: before renoirpi-fp6_1.0.0.7 (fixed in renoirpi-fp6_1.0.0.7)
AMD Ryzen 7 3750h Firmware: before renoirpi-fp6_1.0.0.7 (fixed in renoirpi-fp6_1.0.0.7)
AMD Ryzen 7 3780u Firmware: before renoirpi-fp6_1.0.0.7 (fixed in renoirpi-fp6_1.0.0.7)
AMD Ryzen 7 5700g Firmware: before comboam4_v2_pi_1.2.0.6c (fixed in comboam4_v2_pi_1.2.0.6c)
AMD Ryzen 7 5700ge Firmware: before comboam4_v2_pi_1.2.0.6c (fixed in comboam4_v2_pi_1.2.0.6c)
and 10 more

Published 2022-07-14. Last modified 2026-06-17.