{"id":"CVE-2023-20577","aliases":["EUVD-2023-60617","GHSA-hp78-wv22-mhmg"],"status":"published","title":"A heap overflow in SMM module may allow an attacker with access to a second vulnerability that...","description":"A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00152,"percentile":0.0446,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2026-09-02T19:57:10Z","modified":"2026-09-04T20:17:20Z","products":[{"vendor":"amd","product":"2nd gen amd epyc™ processors"},{"vendor":"amd","product":"3rd gen amd epyc™ processors"},{"vendor":"amd","product":"4th gen amd epyc™ processors"},{"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 epyc™ embedded 3000"},{"vendor":"amd","product":"amd epyc™ embedded 7002"},{"vendor":"amd","product":"amd epyc™ embedded 7003"},{"vendor":"amd","product":"amd epyc™ embedded 9003"},{"vendor":"amd","product":"amd instinct™ mi300a"},{"vendor":"amd","product":"amd ryzen™ 3000 series desktop processors"},{"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 processors"},{"vendor":"amd","product":"amd ryzen™ 5000 series desktop processors 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™ 6000 series processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 7000 series processors"},{"vendor":"amd","product":"amd ryzen™ 7020 series processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 7035 series processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 7040 series processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 7045 series mobile processors"},{"vendor":"amd","product":"amd ryzen™ embedded 5000"},{"vendor":"amd","product":"amd ryzen™ embedded r1000"},{"vendor":"amd","product":"amd ryzen™ embedded r2000"},{"vendor":"amd","product":"amd ryzen™ embedded v1000"},{"vendor":"amd","product":"amd ryzen™ embedded v2000"},{"vendor":"amd","product":"amd ryzen™ embedded v3000"},{"vendor":"amd","product":"amd ryzen™ threadripper™ 3000 series processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ pro 3000wx series processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ pro 5000wx processors"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-20577"},{"url":"https://github.com/advisories/GHSA-hp78-wv22-mhmg"}],"sources":{"cve":[{"id":"CVE-2023-20577","description":"A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.","status":"published","published":"2026-09-02T19:57:10.678Z","modified":"2026-11-03T15:02:34.068Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-03T15:57:15.749386Z"}],"euvd":[{"id":"EUVD-2023-60617","description":"A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.","status":"published","published":"2026-09-02T19:57:10Z","modified":"2026-11-03T15:02:34Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T16:18:15.107036Z"}],"ghsa":[{"id":"GHSA-hp78-wv22-mhmg","title":"A heap overflow in SMM module may allow an attacker with access to a second vulnerability that...","description":"A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.","status":"published","published":"2026-09-02T21:32:08Z","modified":"2026-09-02T21:32:14Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:11:17.943368Z"}],"nvd":[{"id":"CVE-2023-20577","description":"A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.","status":"published","published":"2026-09-02T20:17:34.093Z","modified":"2026-09-04T20:17:20.57Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:09:27.733183Z"}]}}