Medium severityNVD Advisory· Published Nov 10, 2026

CVE-2026-40668

Description

Authentication bypass by spoofing in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to request attestation reports for VMPL 0.

Affected products

AMD/Secure Encrypted Virtualization Firmwarellm-fuzzy

Patches

Vulnerability mechanics

References

www.amd.com/en/resources/product-security/bulletin/AMD-SB-3038.htmlnvd

News mentions

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