Medium severityNVD Advisory· Published Nov 10, 2026

CVE-2025-62621

Description

Expected behavior violation in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to bypass Reverse Map Table (RMP) protections, potentially resulting in a loss of Secure Encrypted Virtualization-Secure Nested Paging (SEV-SNP) guest memory integrity.

Affected products

AMD/Secure Encrypted Virtualization Firmwarellm-fuzzy

Patches

Vulnerability mechanics

References

www.amd.com/en/resources/product-security/bulletin/AMD-SB-3037.htmlnvd

News mentions

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