CVE-2025-61971 MEDIUM

CVE-2025-61971

Weakness CWE-1233
Published May 13, 2026
Last update May 13, 2026

CVSS base score

5.9/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 13, 2026 CVE published
May 13, 2026 Record updated