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Vulnerability record · CVE-2021-46766 · published 14 November 2023

CVE-2021-46766: Amd epyc 9654p firmware vulnerability

AAmd · Epyc 9654p Firmware

Improper clearing of sensitive data in the ASP Bootloader may expose secret keys to a privileged attacker accessing ASP SRAM, potentially leading to a loss of confidentiality.

5.5 CVSS 3.1 Medium EPSS 0.23% · top 87.7% CWE-459 · CWE-459
5.5CVSS 3.1 base score
0.23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
28Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Improper clearing of sensitive data in the ASP Bootloader may expose secret keys to a privileged attacker accessing ASP SRAM, potentially leading to a loss of confidentiality.

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

Affected products

28 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002 Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002 Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002 Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002 Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001

Track CVE-2021-46766 inside VULONE

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-46766), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.