CVE-2025-61972

Missing lock bit protection for NBIO registers could allow a local admin-privileged attacker to gain arbitrary System Management Network (SMN) access, potentially resulting in arbitrary code execution in AMD Secure Processor (ASP) and loss of the SEV-SNP guest's confidentiality and integrity.

Score

CVSS 4.0 8.5 High

Status

Awaiting Analysis - psirt@amd.com

Published

2026-05-13

Last modified

2026-05-14

Weaknesses

CWE-1233

Affected products

• Amd Epyc 8004 Series Processors (Amd)
• Amd Epyc 9004 Series Processors (Amd)
• Amd Epyc 9005 Series Processors (Amd)
• Amd Epyc Embedded 8004 Series Processors (Amd)
• Amd Epyc Embedded 9004 Series Processors Formerly Codenamed Bergamo (Amd)
• Amd Epyc Embedded 9004 Series Processors Formerly Codenamed Genoa (Amd)
• Amd Epyc Embedded 9005 Series Processors (Amd)

References

• https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3030.html