{"id":"CVE-2021-26381","state":"PUBLISHED","title":"Improper system call parameter validation in the Trusted OS may allow a malicious driver to perform mapping or unmapping operations on a large number of pages, potentially resultin","description":"Improper system call parameter validation in the Trusted OS may allow a malicious driver to perform mapping or unmapping operations on a large number of pages, potentially resulting in kernel memory corruption.","publishedAt":"2026-02-10T19:47:26.356Z","updatedAt":"2026-02-26T14:44:28.708Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"AMD"},"assigner":"AMD","products":["AMD AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors","AMD AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics","AMD AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors","AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics","AMD AMD Ryzen™ 5000 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