CVE-2023-20596
CRITICALAMD Ryzen SMM Supervisor - Ring0 Code Execution
Title source: manualDescription
Improper input validation in the SMM Supervisor may allow an attacker with a compromised SMI handler to gain Ring0 access potentially leading to arbitrary code execution.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7011
Scores
CVSS v3
9.8
EPSS
0.0039
EPSS Percentile
60.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
Status
published
Products (50)
amd/ryzen_3_5125c_firmware
< cezannepi-fp6_1.0.0.fa
amd/ryzen_3_5300g_firmware
< comboam4v2_1.2.0.b
amd/ryzen_3_5300ge_firmware
< comboam4v2_1.2.0.b
amd/ryzen_3_5400u_firmware
< cezannepi-fp6_1.0.0.fa
amd/ryzen_3_5425u_firmware
< cezannepi-fp6_1.0.0.fa
amd/ryzen_3_7335u_firmware
< rembrandtpi-fp7_1.0.0.9b
amd/ryzen_3_7440u_firmware
< phoenixpi-fp8-fp7_1.0.0.2
amd/ryzen_5_5500h_firmware
< cezannepi-fp6_1.0.0.fa
amd/ryzen_5_5560u_firmware
< cezannepi-fp6_1.0.0.fa
amd/ryzen_5_5600g_firmware
< comboam4v2_1.2.0.b
... and 40 more
Published
Nov 14, 2023
Tracked Since
Feb 18, 2026