High severity7.8NVD Advisory· Published Jan 11, 2023· Updated Jun 17, 2026
CVE-2021-26409
CVE-2021-26409
Description
Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory integrity.
Affected products
3- AMD/3rd Gen EPYCv5Range: various
Patches
Vulnerability mechanics
References
1- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032nvdVendor Advisory
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