Ghostwire

CVE-2025-61971: Missing lock bit protection for NBIO registers could allow a local admin-privileged attacker to modify MMIO routing...

MEDIUM CVSS 5.5 EPSS 0.01%

Published: May 13, 2026 | Last Modified: May 13, 2026

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.

Ghostwire Analysis — What This Means Practically

Exploitation Probability (EPSS): Low — 0.01% (2th percentile)

Low exploitation probability based on current threat landscape data. Standard patching timeline is appropriate.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Security Coverage (2 articles)

References