CVE-2023-20596

high-risk
Published 2023-11-14

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.

Do I need to act?

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0.39% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (20)

Ryzen 9 7950X3D Firmware
Ryzen 9 7950X Firmware
Ryzen 9 7900X3D Firmware
Ryzen 9 7900 Firmware
Ryzen 9 7900X Firmware
Ryzen 9 Pro 7945 Firmware
Ryzen 7 7800X3D Firmware
Ryzen 7 7700X Firmware
Ryzen 7 7700 Firmware
Ryzen 7 Pro 7745 Firmware
Ryzen 5 7600X Firmware
Ryzen 5 7600 Firmware
Ryzen 5 Pro 7645 Firmware
Ryzen 5 7500F Firmware

Affected Vendors

Amd

References (2)

Vendor Advisory https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7011
Vendor Advisory https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7011
60
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 1/34 · Minimal
Exposure 27/34 · High