CVE-2025-61971

Missing lock bit protection for NBIO registers could allow a local admin-privileged attacker to modify MMIO routing configurations, potentially resulting in loss of SEV-SNP guest integrity.

Score

CVSS 4.0 5.9 Medium

Status

Awaiting Analysis - psirt@amd.com

Published

2026-05-13

Last modified

2026-05-13

Weaknesses

CWE-1233

Affected products

• Amd Epyc 7003 Series Processors (Amd)
• Amd Epyc 8004 Series Processors (Amd)
• Amd Epyc 9004 Series Processors (Amd)
• Amd Epyc 9005 Series Processors (Amd)
• Amd Epyc Embedded 7003 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