CVE-2026-49792

EUVD-2026-43807
Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/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 10
1607 (x64, x86)
1809 (x64, x86)
21H2 (arm64, x64, x86)
22H2 (arm64, x64, x86)
Windows 11
24H2 (arm64, x64)
25H2 (arm64, x64)
26H1 (arm64)
26H1 (x64)
Windows Server 2016
Server Core
Standard
Windows Server 2019
Server Core
Standard
Windows Server 2022
Standard
Windows Server 2025
Server Core
Standard