{"id":"CVE-2021-26353","aliases":["EUVD-2021-13159","GHSA-3972-3jg9-99pp"],"status":"published","title":"Due to a mishandled error, it is possible to leave the DRTM UApp in a partially initialized state...","description":"Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00269,"percentile":0.19177,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-665"],"published":"2022-05-10T18:33:42Z","modified":"2026-06-17T03:43:12Z","products":[{"vendor":"amd","product":"3rd gen epyc"},{"vendor":"amd","product":"epyc_72f3_firmware"},{"vendor":"amd","product":"epyc_7313_firmware"},{"vendor":"amd","product":"epyc_7313p_firmware"},{"vendor":"amd","product":"epyc_7343_firmware"},{"vendor":"amd","product":"epyc_7373x_firmware"},{"vendor":"amd","product":"epyc_73f3_firmware"},{"vendor":"amd","product":"epyc_7413_firmware"},{"vendor":"amd","product":"epyc_7443_firmware"},{"vendor":"amd","product":"epyc_7443p_firmware"},{"vendor":"amd","product":"epyc_7453_firmware"},{"vendor":"amd","product":"epyc_7473x_firmware"},{"vendor":"amd","product":"epyc_74f3_firmware"},{"vendor":"amd","product":"epyc_7513_firmware"},{"vendor":"amd","product":"epyc_7543_firmware"},{"vendor":"amd","product":"epyc_7543p_firmware"},{"vendor":"amd","product":"epyc_7573x_firmware"},{"vendor":"amd","product":"epyc_75f3_firmware"},{"vendor":"amd","product":"epyc_7643_firmware"},{"vendor":"amd","product":"epyc_7663_firmware"},{"vendor":"amd","product":"epyc_7713_firmware"},{"vendor":"amd","product":"epyc_7713p_firmware"},{"vendor":"amd","product":"epyc_7763_firmware"},{"vendor":"amd","product":"epyc_7773x_firmware"}],"references":[{"url":"https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032","tags":["vendor-advisory","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26353"},{"url":"https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021"},{"url":"https://github.com/advisories/GHSA-3972-3jg9-99pp"}],"sources":{"cve":[{"id":"CVE-2021-26353","description":"Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity.","status":"published","published":"2022-05-10T18:33:42.47Z","modified":"2024-08-03T20:26:24.535Z","updated_at":"2026-11-02T14:32:57.033395Z"}],"euvd":[{"id":"EUVD-2021-13159","description":"Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity.","status":"published","published":"2022-05-10T18:33:42Z","modified":"2024-08-03T20:26:24Z","updated_at":"2026-11-03T03:24:51.962182Z"}],"ghsa":[{"id":"GHSA-3972-3jg9-99pp","title":"Due to a mishandled error, it is possible to leave the DRTM UApp in a partially initialized state...","description":"Due to a mishandled error, it is possible to leave the DRTM UApp in a partially initialized state, which can result in unchecked memory writes when the UApp handles subsequent mailbox commands.","status":"published","published":"2022-05-11T00:01:18Z","modified":"2023-01-27T05:03:25Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-665"],"updated_at":"2026-11-02T14:42:14.302128Z"}],"nvd":[{"id":"CVE-2021-26353","description":"Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity.","status":"published","published":"2022-05-10T19:15:08.657Z","modified":"2026-06-17T03:43:12.863Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-665"],"updated_at":"2026-11-02T14:07:06.029737Z"}]}}