{"id":"CVE-2021-46791","aliases":["EUVD-2021-33447","GHSA-669j-rxfq-2fvw"],"status":"published","title":"Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow...","description":"Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of service.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00186,"percentile":0.08306,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-787"],"published":"2023-01-10T20:56:54Z","modified":"2026-06-17T04:15:34Z","products":[{"vendor":"amd","product":"3rd gen epyc"},{"vendor":"amd","product":"milanpi_firmware"}],"references":[{"url":"https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46791"},{"url":"https://github.com/advisories/GHSA-669j-rxfq-2fvw"}],"sources":{"cve":[{"id":"CVE-2021-46791","description":"Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of service.\n","status":"published","published":"2023-01-10T20:56:54.107Z","modified":"2025-04-09T14:46:50.603Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:33:02.930115Z"}],"euvd":[{"id":"EUVD-2021-33447","description":"Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of service.\n","status":"published","published":"2023-01-10T20:56:54Z","modified":"2025-04-09T14:46:50Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T20:52:38.716764Z"}],"ghsa":[{"id":"GHSA-669j-rxfq-2fvw","title":"Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow...","description":"Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of service.","status":"published","published":"2023-01-11T09:30:30Z","modified":"2025-04-09T15:33:08Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20","CWE-787"],"updated_at":"2026-11-02T15:01:02.112182Z"}],"nvd":[{"id":"CVE-2021-46791","description":"Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of service.\n","status":"published","published":"2023-01-11T08:15:13.27Z","modified":"2026-06-17T04:15:34.827Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:07.323379Z"}]}}