CVE-2023-20571: AMD Ryzen 3 5100 Firmware

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.

Affected products

AMD Ryzen 3 5100 Firmware: before comboam4v2_1.2.0.b (fixed in comboam4v2_1.2.0.b)
AMD Ryzen 3 5125c Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 3 5300g Firmware: before comboam4v2_1.2.0.b (fixed in comboam4v2_1.2.0.b)
AMD Ryzen 3 5300ge Firmware: before comboam4v2_1.2.0.b (fixed in comboam4v2_1.2.0.b)
AMD Ryzen 3 5400u Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 3 5425u Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 3 7335u Firmware: before rembrandtpi-fp7_1.0.0.9 (fixed in rembrandtpi-fp7_1.0.0.9)
AMD Ryzen 3 Pro 7330u Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 3 Pro 7440u Firmware: before phoenixpi-fp8-fp7_pi_1.0.0.1g (fixed in phoenixpi-fp8-fp7_pi_1.0.0.1g)
AMD Ryzen 5 5500 Firmware: before comboam4v2_1.2.0.b (fixed in comboam4v2_1.2.0.b)
AMD Ryzen 5 5500h Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 5 5560u Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 5 5600g Firmware: before comboam4v2_1.2.0.b (fixed in comboam4v2_1.2.0.b)
AMD Ryzen 5 5600ge Firmware: before comboam4v2_1.2.0.b (fixed in comboam4v2_1.2.0.b)
AMD Ryzen 5 5600h Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 5 5600hs Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 5 5600u Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 5 5625u Firmware: before cezannepi-fp6_1.0.0.f (fixed in cezannepi-fp6_1.0.0.f)
AMD Ryzen 5 6600h Firmware: before rembrandtpi-fp7_1.0.0.9 (fixed in rembrandtpi-fp7_1.0.0.9)
AMD Ryzen 5 6600hs Firmware: before rembrandtpi-fp7_1.0.0.9 (fixed in rembrandtpi-fp7_1.0.0.9)
AMD Ryzen 5 6600u Firmware: before rembrandtpi-fp7_1.0.0.9 (fixed in rembrandtpi-fp7_1.0.0.9)
AMD Ryzen 5 7500f Firmware: before comboam5_1.0.7.0 (fixed in comboam5_1.0.7.0)
AMD Ryzen 5 7535hs Firmware: before rembrandtpi-fp7_1.0.0.9 (fixed in rembrandtpi-fp7_1.0.0.9)
AMD Ryzen 5 7535u Firmware: before rembrandtpi-fp7_1.0.0.9 (fixed in rembrandtpi-fp7_1.0.0.9)
AMD Ryzen 5 7600 Firmware: before comboam5_1.0.7.0 (fixed in comboam5_1.0.7.0)
and 46 more

Published 2023-11-14. Last modified 2026-06-17.