{"id":"CVE-2023-20577","aliases":[],"url":"https://o3.security/vulnerability/CVE-2023-20577","summary":"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.","details":"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.","published":"2026-09-02T20:17:34.093","modified":"2026-09-04T20:17:20.570","cvss":{"score":7.4,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-04T20:17:20.570"}}