ASP Bootloader Vulnerability in AMD Products
CVE-2026-0003

5.9MEDIUM

Key Information:

Vendor

Amd
Status
Amd Epyc™ 9004 Series Processors
Amd Epyc™ 7003 Series Processors
Amd Epyc™ 8004 Series Processors
Amd Epyc™ Embedded 7003 Series Processors
Vendor
CVE Published:
10 November 2026

What is CVE-2026-0003?

A vulnerability exists in the ASP Bootloader related to the use of a per-part static key, which could allow an attacker to execute a downgrade attack on the Secure Encrypted Virtualization (SEV) firmware. This exploitation can lead to breaches in memory confidentiality by enabling access to decrypted sensitive information. The risk emphasizes the need for updated security measures to mitigate potential threats associated with SEV firmware.

Affected Version(s)

AMD EPYC™ 7003 Series Processors MilanPI-SP3_1.0.0.K

AMD EPYC™ 8004 Series Processors GenoaPI_1.0.0.J

AMD EPYC™ 9004 Series Processors GenoaPI_1.0.0.J

References

https://www.amd.com/en/resources/product-security/bulleti...

CVSS V4

Score:
5.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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