{"id":"CVE-2021-26367","aliases":["EUVD-2021-13173","GHSA-2xq4-823c-q5v9"],"status":"published","title":"A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow...","description":"A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.","severity":{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00157,"percentile":0.04928,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2024-08-13T16:50:05Z","modified":"2026-06-17T03:43:14Z","products":[{"vendor":"amd","product":"amd athlon™ 3000 series desktop processors with radeon™ graphics"},{"vendor":"amd","product":"amd athlon™ 3000 series mobile  processors with radeon™ graphics"},{"vendor":"amd","product":"amd radeon™ pro w6000 series graphics cards"},{"vendor":"amd","product":"amd radeon™ rx 6000 series graphics cards"},{"vendor":"amd","product":"amd ryzen™ 3000 series mobile processor with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 3000 series processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 4000 series desktop processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 4000 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 5000 series desktop processor with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 5000 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 5000 series processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ embedded r1000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded r2000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded v1000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded v2000 series processors"},{"vendor":"amd","product":"athlon_gold_3150c_firmware"},{"vendor":"amd","product":"athlon_gold_3150g_firmware"},{"vendor":"amd","product":"athlon_gold_3150u_firmware"},{"vendor":"amd","product":"athlon_gold_pro_3150g_firmware"},{"vendor":"amd","product":"athlon_gold_pro_3150ge_firmware"},{"vendor":"amd","product":"athlon_pro_300ge_firmware"},{"vendor":"amd","product":"athlon_pro_3045b_firmware"},{"vendor":"amd","product":"athlon_pro_3145b_firmware"},{"vendor":"amd","product":"athlon_silver_3050c_firmware"},{"vendor":"amd","product":"athlon_silver_3050e_firmware"},{"vendor":"amd","product":"athlon_silver_3050u_firmware"},{"vendor":"amd","product":"radeon_software"},{"vendor":"amd","product":"ryzen_3_3300u_firmware"},{"vendor":"amd","product":"ryzen_3_3350u_firmware"},{"vendor":"amd","product":"ryzen_3_4300g_firmware"},{"vendor":"amd","product":"ryzen_3_4300ge_firmware"},{"vendor":"amd","product":"ryzen_3_5300g_firmware"},{"vendor":"amd","product":"ryzen_3_5300ge_firmware"},{"vendor":"amd","product":"ryzen_5_3450u_firmware"},{"vendor":"amd","product":"ryzen_5_3500c_firmware"},{"vendor":"amd","product":"ryzen_5_3500u_firmware"},{"vendor":"amd","product":"ryzen_5_3550h_firmware"},{"vendor":"amd","product":"ryzen_5_3580u_firmware"},{"vendor":"amd","product":"ryzen_5_4600g_firmware"},{"vendor":"amd","product":"ryzen_5_4600ge_firmware"},{"vendor":"amd","product":"ryzen_5_5600g_firmware"},{"vendor":"amd","product":"ryzen_5_5600ge_firmware"},{"vendor":"amd","product":"ryzen_7_3700c_firmware"},{"vendor":"amd","product":"ryzen_7_3700u_firmware"},{"vendor":"amd","product":"ryzen_7_3750h_firmware"},{"vendor":"amd","product":"ryzen_7_3780u_firmware"},{"vendor":"amd","product":"ryzen_7_4700g_firmware"},{"vendor":"amd","product":"ryzen_7_4700ge_firmware"},{"vendor":"amd","product":"ryzen_7_5700g_firmware"},{"vendor":"amd","product":"ryzen_7_5700ge_firmware"},{"vendor":"amd","product":"ryzen_9_5980hx_firmware"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-4004.html","tags":["Vendor Advisory"]},{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6005.html","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26367"},{"url":"https://github.com/advisories/GHSA-2xq4-823c-q5v9"}],"sources":{"cve":[{"id":"CVE-2021-26367","description":"A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.","status":"published","published":"2024-08-13T16:50:05.825Z","modified":"2024-12-04T16:25:09.987Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13173","description":"A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, 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in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.","status":"published","published":"2024-08-13T17:15:17.36Z","modified":"2026-06-17T03:43:14.833Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:08.629518Z"}]}}