CVE-2026-69617

EUVD-2026-73556
Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7 HIGH
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Windows Releases
Platform
Version
Windows 11
26H1 (arm64, x64)
KB5124012
Windows Server 2025
Server Core
KB5122871
Standard
KB5122871
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69617