CVE-2023-20577

Published: Sep 2, 2026Modified: Sep 4, 2026

7.4

Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.4 / Impact: 5.9

Source: psirt@amd.com (Secondary)

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.

Related CWEs

CWE-121

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

References (1)

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html

Source: psirt@amd.com

Timeline

No history available yet.