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.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.5
- CVSS vector
- CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
- EPSS probability
- 0.13%
- CWE
- CWE-1233
- Published
- 2026-05-13
- Last modified
- 2026-05-14
Affected products
- AMD AMD EPYC™ 9004 Series Processors
- AMD AMD EPYC™ 9005 Series Processors
- AMD AMD EPYC™ 8004 Series Processors
- AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa")
- AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo")
- AMD AMD EPYC™ Embedded 8004 Series Processors
- AMD AMD EPYC™ Embedded 9005 Series Processors
Weakness type
Related vulnerabilities
- CVE-2025-61971 — Missing lock bit protection for NBIO registers could allow a local admin-privileged attacker to...
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