{"id":"CVE-2021-26370","aliases":["EUVD-2021-13176","GHSA-9hr4-cwvw-3xm2"],"status":"published","title":"Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and...","description":"Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00231,"percentile":0.1406,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2022-05-10T18:25:17Z","modified":"2026-06-17T03:43:15Z","products":[{"vendor":"amd","product":"2nd gen amd epyc™"},{"vendor":"amd","product":"3rd gen amd 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Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26370"},{"url":"https://github.com/advisories/GHSA-9hr4-cwvw-3xm2"}],"sources":{"cve":[{"id":"CVE-2021-26370","description":"Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.","status":"published","published":"2022-05-10T18:25:17.618Z","modified":"2024-09-16T22:20:14.838Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13176","description":"Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.","status":"published","published":"2022-05-10T18:25:17Z","modified":"2024-09-16T22:20:14Z","updated_at":"2026-11-03T00:55:03.975609Z"}],"ghsa":[{"id":"GHSA-9hr4-cwvw-3xm2","title":"Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and...","description":"Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.","status":"published","published":"2022-05-11T00:01:18Z","modified":"2023-02-01T05:02:12Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:49:51.819251Z"}],"nvd":[{"id":"CVE-2021-26370","description":"Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.","status":"published","published":"2022-05-10T19:15:08.813Z","modified":"2026-06-17T03:43:15.313Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.6,"vector":"AV:L/AC:L/Au:N/C:N/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:07:06.029737Z"}]}}