CVE-2026-26163

| EUVD-2026-22390 HIGH
2026-04-14 microsoft
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 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 - 19:26 vuln.today

DescriptionNVD

Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.

AnalysisAI

Windows Kernel double free vulnerability enables local privilege escalation across Windows 10, 11, and Server editions when exploited by authenticated users with low-level privileges. The CWE-415 flaw affects all currently supported Windows versions from legacy Windows Server 2012 R2 through the latest Windows 11 26H1 and Windows Server 2025 builds. …

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RemediationAI

Within 24 hours: Verify patch availability from Microsoft and prioritize inventory of affected systems (Windows 10, 11, Server 2012 R2-2025). Within 7 days: Deploy vendor-released patch to all production Windows systems, prioritizing servers and high-value endpoints; test patch in non-production environment first. …

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CVE-2026-26163 vulnerability details – vuln.today
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