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.

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History

Wed, 13 May 2026 04:30:00 +0000

Type Values Removed Values Added
Title Insufficient Lock‑Bit Protection Enabling Unauthorized MMIO Routing Modification

Wed, 13 May 2026 03:30:00 +0000

Type Values Removed Values Added
Description 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.
Weaknesses CWE-1233
References
Metrics cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: AMD

Published:

Updated: 2026-05-13T03:02:55.705Z

Reserved: 2025-10-04T18:09:57.018Z

Link: CVE-2025-61971

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-05-13T04:30:05Z

Weaknesses