{"id":"CVE-2026-0438","state":"PUBLISHED","title":"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 und","description":"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.","publishedAt":"2026-05-15T01:41:25.568Z","updatedAt":"2026-05-19T21:01:36.151Z","severity":{"score":5.4,"label":"Medium","version":"4.0","vector":"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","source":"AMD"},"assigner":"AMD","products":["AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics","AMD AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics","AMD AMD Ryzen™ 7000 Series Desktop Processors","AMD AMD Ryzen™ 9000HX Series Processors","AMD AMD Ryzen™ AI 300 Series Processors","AMD AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors","AMD AMD Ryzen™ 8000 Series Desktop Processors","AMD AMD Ryzen™ 9000 Series Desktop Processors","AMD AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics","AMD AMD Ryzen™ AI Max 300 Series Processors","AMD AMD Ryzen™ Z1 Series Processors","AMD AMD Ryzen™ Z2 Series Processors Extreme","AMD AMD Ryzen™ Z2 Series Processors","AMD AMD Ryzen™ Threadripper™ 7000  Processors","AMD AMD Ryzen™ Threadripper™ 9000 Processors","AMD AMD Ryzen™ Threadripper™ PRO 9000 WX-Series Processors","AMD AMD Ryzen™ 7000 Series Desktop Processors (formerly codenamed \"Raphael\")","AMD AMD Ryzen™ 8000 Series Desktop Processors (formerly codenamed \"Phoenix\")","AMD AMD Ryzen™ 9000 Series Desktop Processors (formerly codenamed \"Granite Ridge\")","AMD AMD Ryzen™ Embedded 9000 Series Processors","AMD AMD Ryzen™ Embedded 8000 Series Processors","AMD AMD Ryzen™ Embedded 7000 Series Processors","AMD AMD EPYC™ 4004 Series Processors","AMD AMD EPYC™ 4005 Series Processors"],"affected":[{"vendor":"AMD","product":"AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ 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