Bug 2476925 (CVE-2025-61971) - CVE-2025-61971 microcode_ctl: Microcode: Loss of SEV-SNP guest integrity via NBIO register modification
Summary: CVE-2025-61971 microcode_ctl: Microcode: Loss of SEV-SNP guest integrity via ...
Keywords:
Status: NEW
Alias: CVE-2025-61971
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2526216 2489142
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-13 04:01 UTC by OSIDB Bzimport
Modified: 2026-08-31 13:18 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-05-13 04:01:29 UTC 
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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