CVE-2026-27923

| EUVD-2026-22472 HIGH
2026-04-14 microsoft GHSA-2h4c-cjph-5cr5
Denial Of Service Use After Free Memory Corruption 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 2012 Windows Server 2012 Server Core Installation Windows Server 2012 R2 Windows Server 2012 R2 Server Core Installation 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
7.8
CVSS 3.1
Temporal: 6.8
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CVSS VectorNVD

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

Lifecycle Timeline

1
Analysis Generated
Apr 14, 2026 - 19:30 vuln.today

DescriptionNVD

Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

AnalysisAI

Desktop Window Manager (DWM) use-after-free memory corruption allows authenticated local attackers to escalate privileges to SYSTEM on all supported Windows 10, Windows 11, and Windows Server versions (2012-2025). The vulnerability enables low-privileged users to gain complete control over affected systems with low attack complexity and no user interaction required. …

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RemediationAI

Within 24 hours: Inventory all Windows 10, 11, and Server 2012-2025 systems in your environment and identify patch availability for your specific versions from Microsoft Security Updates. Within 7 days: Deploy vendor patches to non-production systems and conduct testing to validate stability and application compatibility. …

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CVE-2026-27923 vulnerability details – vuln.today
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