{"id":"CVE-2020-12890","aliases":["EUVD-2020-5170","GHSA-3h77-rgfr-6455"],"status":"published","title":"Improper handling of pointers in the System Management Mode (SMM) handling code may allow for a...","description":"Improper handling of pointers in the System Management Mode (SMM) handling code may allow for a privileged attacker with physical or administrative access to potentially manipulate the AMD Generic Encapsulated Software Architecture (AGESA) to execute arbitrary code undetected by the operating system.","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.0029,"percentile":0.21772,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-12-10T21:56:55Z","modified":"2026-06-17T02:52:29Z","products":[{"vendor":"amd","product":"amd processors"},{"vendor":"amd","product":"amd_generic_encapsulated_software_architecture"}],"references":[{"url":"https://www.amd.com/en/corporate/product-security","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12890"},{"url":"https://github.com/advisories/GHSA-3h77-rgfr-6455"}],"sources":{"cve":[{"id":"CVE-2020-12890","description":"Improper handling of pointers in the System Management Mode (SMM) handling code may allow for a privileged attacker with physical or administrative access to potentially manipulate the AMD Generic Encapsulated Software Architecture (AGESA) to execute arbitrary code undetected by the operating system.","status":"published","published":"2021-12-10T21:56:55.155Z","modified":"2024-09-16T23:36:11.77Z","updated_at":"2026-11-02T14:35:52.925152Z"}],"euvd":[{"id":"EUVD-2020-5170","description":"Improper handling of pointers in the System Management Mode (SMM) handling code may allow for a privileged attacker with physical or administrative access to potentially manipulate the AMD Generic Encapsulated Software Architecture (AGESA) to execute arbitrary code undetected by the operating system.","status":"published","published":"2021-12-10T21:56:55Z","modified":"2024-09-16T23:36:11Z","updated_at":"2026-11-03T00:54:48.722382Z"}],"ghsa":[{"id":"GHSA-3h77-rgfr-6455","title":"Improper handling of pointers in the System Management Mode (SMM) handling code may allow for a...","description":"Improper handling of pointers in the System Management Mode (SMM) handling code may allow for a privileged attacker with physical or administrative access to potentially manipulate the AMD Generic Encapsulated Software Architecture (AGESA) to execute arbitrary code undetected by the operating system.","status":"published","published":"2021-12-11T00:00:40Z","modified":"2023-02-01T05:07:03Z","updated_at":"2026-11-02T14:50:28.399252Z"}],"nvd":[{"id":"CVE-2020-12890","description":"Improper handling of pointers in the System Management Mode (SMM) handling code may allow for a privileged attacker with physical or administrative access to potentially manipulate the AMD Generic Encapsulated Software Architecture (AGESA) to execute arbitrary code undetected by the operating system.","status":"published","published":"2021-12-10T22:15:07.833Z","modified":"2026-06-17T02:52:29.837Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","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"}],"updated_at":"2026-11-02T14:06:46.101987Z"}]}}