CVE-2026-70184

EUVD-2026-100129
Improper resolution of path equivalence in Windows Backup Engine allows an authorized attacker to elevate privileges 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: 30.2%
Windows Releases
Platform
Version
Windows 10
21H2 (arm64, x64, x86)
KB5126657
22H2 (arm64, x64, x86)
KB5126657
Windows 11
23H2 (arm64, x64)
KB5126653
24H2 (arm64, x64)
KB5127648
25H2 (arm64, x64)
KB5127648
26H1 (arm64, x64)
KB5127646
26H2 (arm64, x64)
KB5127648
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70184