by Kastro
Paper/Archive/CVE-2023-20596

CVE-2023-20596

AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics Formerly codenamed “Cezanne” AM4 — Improper input validation in the SMM Supervisor may allow an attacker with a compromised SMI handler to gain Ring0 access potentially lea…

EPSS 1%CVSS 9.8
critical.is priorityof 100
42
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 64.2.642 × 2012.8No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics Formerly codenamed “Cezanne” AM4various –CNA
Ryzen™ 7000 Series Desktop Processors with Radeon™ Graphics Formerly codenamed “Raphael”various –CNA
Ryzen™ 7000 Series Desktop Processors with Radeon™ Graphics Formerly codenamed “Raphael” X3Dvarious –CNA
Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne”various –CNA
AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt"various –CNA
AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics “Rembrandt-R”various –CNA
Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics Formerly codenamed “Phoenix”various –CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

advisoryamd.com/en/corporate/product-security/bulletin/AMD-SB-7011