CVE-2026-0480

MediumCVSS 6.0/10Last modified Nov 13, 2026

Description

Missing Authentication for Critical Function in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to forge SEV-TIO guest request messages potentially compromising SEV-SNP guest memory integrity and confidentiality.

Metrics

CVSS 4.0 6.0/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-306

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
AMD	AMD EPYC™ 9005 Series Processors	—
AMD	AMD EPYC™ 8005 Series Processors	—
AMD	AMD EPYC™ Embedded 9005 Series Processors	—

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3038.html

Timeline

Published: Nov 10, 2026
Last modified: Nov 13, 2026
NVD status: Awaiting Analysis

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