EUVD-2026-22420

| CVE-2026-26179 HIGH
2026-04-14 microsoft
Information Disclosure Microsoft Windows 11 Version 22H3 Windows 11 Version 23H2 Windows 11 Version 24H2 Windows 11 Version 25H2 Windows 11 Version 26H1 Windows Server 2022 23H2 Edition Server Core Installation Windows Server 2025 Windows Server 2025 Server Core Installation
7.8
CVSS 3.1
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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 - 19:14 vuln.today

DescriptionNVD

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

AnalysisAI

Local privilege escalation in the Windows Kernel via double free vulnerability enables low-privileged authenticated users to gain SYSTEM-level access across Windows 11 (versions 22H3 through 26H1) and Windows Server 2022/2025. The vulnerability requires local access and low privileges (PR:L) but presents low attack complexity (AC:L) with no user interaction required. …

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RemediationAI

Within 24 hours: Identify all Windows 11 and Windows Server 2022/2025 systems in your environment and confirm current patch levels. Within 7 days: Deploy vendor-released patches to all affected systems beginning with critical infrastructure and servers handling sensitive data; prioritize Windows Server systems in production environments. …

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EUVD-2026-22420 vulnerability details – vuln.today
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