CVE-2023-20577

7.4 highEPSS 0.2%

High (7.4). EPSS 0.2% chance of exploitation in the next 30 days.

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

CVSS 3.1

7.4 high

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-31)
CWE: CWE-121
Published: 2026-09-02
Modified: 2026-09-04
Record from: the NVD, synced 2026-10-19

References

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

Check your stack JSON