EUVD-2026-30496
GHSA-783m-hm3h-gh75
CVSS VectorNVD
CVSS:4.0/AV:P/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4DescriptionNVD
A System Management Mode (SMM) handler could perform a callout to code located in non-SMM/untrusted memory. A highly privileged attacker could, with active user interaction and under high complexity and present preconditions, trigger execution of attacker-controlled code in SMM, potentially compromising the system’s confidentiality, integrity, and availability.
AnalysisAI
System Management Mode (SMM) handler in AMD Ryzen mobile, desktop, embedded, Threadripper, and EPYC processors allows privileged local attackers to execute arbitrary code in SMM by triggering a callout to attacker-controlled code in untrusted non-SMM memory. The vulnerability requires high complexity conditions, active user interaction, physical proximity or direct system access, and high privilege level; successful exploitation compromises system confidentiality, integrity, and availability. …
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External POC / Exploit Code
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