CVE-2026-88174

EUVD-2026-100104
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Deployment Services allows an unauthorized attacker to execute code over a network.
Race Condition
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/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: 34.93%
Windows Releases
Platform
Version
Windows 10
1607 (x64, x86)
KB5126868
1809 (x64, x86)
KB5126651
Windows Server 2012
Server Core
KB5126835
Standard
KB5126835
Windows Server 2012 R2
Server Core
KB5126836
Standard
KB5126836
Windows Server 2016
Server Core
KB5126868
Standard
KB5126868
Windows Server 2019
Server Core
KB5126651
Standard
KB5126651
Windows Server 2022
Server Core
KB5126655
Standard
KB5126655
Windows Server 2025
Server Core
KB5126646
Standard
KB5126646
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88174