EUVD-2026-22449

| CVE-2026-27910 HIGH
2026-04-14 microsoft GHSA-3wgf-ccpx-rv72
Information Disclosure 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 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 - 19:28 vuln.today

DescriptionNVD

Improper handling of insufficient permissions or privileges in Windows Installer allows an authorized attacker to elevate privileges locally.

AnalysisAI

Windows Installer privilege escalation via improper permission handling enables authenticated local users to gain SYSTEM-level access across all supported Windows 10, 11, and Server platforms (2012-2025). The vulnerability (CWE-280: Improper Handling of Insufficient Privileges) requires low-privilege local access but offers complete system compromise with low attack complexity. …

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RemediationAI

Within 24 hours: Inventory all affected Windows 10, 11, and Server 2012-2025 systems and prioritize patching for systems with multiple local user accounts or contractor access. Within 7 days: Deploy vendor-released patches across all affected platforms; verify patch application through WSUS or endpoint management tools. …

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EUVD-2026-22449 vulnerability details – vuln.today
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