Missing Authentication in AMD Secure Encrypted Virtualization Firmware
CVE-2026-0480

6MEDIUM

Key Information:

Vendor

Amd
Status
Amd Epyc™ 9005 Series Processors
Amd Epyc™ 8005 Series Processors
Amd Epyc™ Embedded 9005 Series Processors
Vendor
CVE Published:
10 November 2026

What is CVE-2026-0480?

A security issue in the AMD Secure Encrypted Virtualization (SEV) firmware involves a missing authentication for crucial functions, allowing a malicious hypervisor to replicate SEV-TIO guest request messages. This vulnerability may lead to the compromise of the integrity and confidentiality of SEV-SNP guest memory, posing significant security risks for virtualized environments.

Affected Version(s)

AMD EPYC™ 8005 Series Processors TurinPI_1.0.0.B

AMD EPYC™ 9005 Series Processors TurinPI_1.0.0.B

AMD EPYC™ Embedded 9005 Series Processors EmbeddedTurinPI_SP5_1005

References

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

CVSS V4

Score:
6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.