EUVD-2026-22380

| CVE-2026-26156 HIGH
2026-04-14 microsoft GHSA-xgrj-5fxr-f35m
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 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
Share

CVSS VectorNVD

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

Lifecycle Timeline

1
Analysis Generated
Apr 14, 2026 - 19:26 vuln.today

DescriptionNVD

Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally.

AnalysisAI

Heap-based buffer overflow in Windows Hyper-V enables local code execution with high impact across Windows 10, Windows 11, and Windows Server environments. An unauthenticated attacker with local access can trigger the vulnerability through user interaction (CVSS:3.1 AV:L/AC:L/PR:N/UI:R), achieving full system compromise (C:H/I:H/A:H). …

Sign in for full analysis, threat intelligence, and remediation guidance.

RemediationAI

Within 24 hours: Identify and inventory all Windows 10, Windows 11, and Windows Server systems running Hyper-V using endpoint detection tools; prioritize domain controllers and virtualization hosts. Within 7 days: Apply Microsoft's released patches to all affected versions (Windows 10 1607 through 26H1, Windows Server 2019-2025); test patches in non-production Hyper-V environments first given the system-critical nature. …

Sign in for detailed remediation steps.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Share

EUVD-2026-22380 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy