What is CVE-2023-20576?

CVE-2023-20576 is a high-severity vulnerability, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.7/10. Published 2026-09-02.

How severe is CVE-2023-20576?

High severity. CVSS v3 base score is 7.7 out of 10.

CVE-2023-20576

CVE-2023-20576

Insufficient Verification of Data Authenticity in AGESA™ may allow an attacker to update SPI ROM data potentially resulting in denial of service or privilege escalation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

psirt@amd.com

Frequently asked questions

What is CVE-2023-20576?: CVE-2023-20576 is a high-severity vulnerability, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.7/10. Published 2026-09-02.
How severe is CVE-2023-20576?: High severity. CVSS v3 base score is 7.7 out of 10.