CVE-2026-32091

| EUVD-2026-22530 HIGH
2026-04-14 microsoft
Authentication Bypass Race Condition Microsoft Windows 10 Version 1607 Windows 10 Version 1809 Windows 10 Version 21H2 Windows 10 Version 22H2 Windows 11 Version 22H3 Windows 11 Version 23H2 Windows 11 Version 24H2 Windows 11 Version 25H2 Windows 11 Version 26H1 Windows Server 2016 Windows Server 2016 Server Core Installation Windows Server 2019 Windows Server 2019 Server Core Installation Windows Server 2022 Windows Server 2022 23H2 Edition Server Core Installation Windows Server 2025 Windows Server 2025 Server Core Installation
8.4
CVSS 3.1
Temporal: 7.3
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
Analysis Generated
Apr 14, 2026 - 19:32 vuln.today

DescriptionNVD

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.

AnalysisAI

Local privilege escalation in Microsoft Brokering File System across Windows 10, Windows 11, and Windows Server platforms allows unauthenticated attackers to achieve SYSTEM-level access via race condition exploitation. Affects all supported Windows versions from Server 2016 through Windows 11 26H1, with vendor patches released addressing the CWE-362 synchronization flaw. …

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RemediationAI

Within 24 hours: Inventory all Windows 10, Windows 11, and Windows Server 2016+ systems in your environment and verify current patch levels using WSUS or Intune. Within 7 days: Deploy vendor-released patches to all affected Windows systems via standard change management; prioritize domain controllers, servers hosting sensitive data, and administrative workstations first. …

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CVE-2026-32091 vulnerability details – vuln.today
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