What is CVE-2023-20530?

CVE-2023-20530 is a high-severity vulnerability in Amd 3rd Gen Epyc, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2023-01-11.

How severe is CVE-2023-20530?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Amd 3rd Gen Epyc

CVE-2023-20530

Insufficient input validation of BIOS mailbox messages in SMU may result in out-of-bounds memory reads potentially resulting in a denial of service.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.006 (44.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Amd 3rd Gen Epyc — versions various
Amd Epyc_7003
Amd Epyc_7003_firmware
Amd Epyc_72f3
Amd Epyc_72f3_firmware
Amd Epyc_7313
Amd Epyc_7313_firmware
Amd Epyc_7313p
Amd Epyc_7313p_firmware
Amd Epyc_7343

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

psirt@amd.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-20530?: CVE-2023-20530 is a high-severity vulnerability in Amd 3rd Gen Epyc, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2023-01-11.
How severe is CVE-2023-20530?: High severity. CVSS v3 base score is 7.5 out of 10.