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Vulnerability record · CVE-2023-20577 · published 2 September 2026

CVE-2023-20577: Stack-based buffer overflow vulnerability

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.

7.4 CVSS 3.1 High EPSS 0.16% · top 95.6% CWE-121 · Stack-based buffer overflow Awaiting Analysis
7.4CVSS 3.1 base score
0.16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
4 Sep 2026Last modified by NVD

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.

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

References

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

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Source: NIST National Vulnerability Database (record CVE-2023-20577), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.