CVE-2026-26180

| EUVD-2026-22423 HIGH
2026-04-14 microsoft GHSA-c95w-cq44-cgc5
Heap Overflow Buffer Overflow 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
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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

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

AnalysisAI

Heap-based buffer overflow in the Windows Kernel enables local privilege escalation to SYSTEM on Windows 10 (versions 1607 through 22H2), Windows 11 (versions 22H3 through 26H1), and Windows Server (2012 through 2025). Authenticated local attackers with low privileges can exploit this memory corruption vulnerability to gain complete system control. …

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RemediationAI

Within 24 hours: Identify all affected Windows 10 (1607-22H2), Windows 11 (22H3-26H1), and Windows Server (2012-2025) systems in your environment. Within 7 days: Deploy Microsoft's released security patch to all affected devices via Windows Update or WSUS; prioritize domain controllers, administrative workstations, and servers hosting sensitive data. …

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CVE-2026-26180 vulnerability details – vuln.today
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