EUVD-2026-22509

| CVE-2026-32078 HIGH
2026-04-14 microsoft
Denial Of Service Use After Free Memory Corruption Microsoft 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 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 - 19:32 vuln.today

DescriptionNVD

Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.

AnalysisAI

Local privilege escalation in Windows Projected File System (ProjFS) across Windows 10, Windows 11, and Windows Server 2019-2025 allows authenticated low-privileged users to gain SYSTEM-level control via use-after-free memory corruption. Attack requires local access and low-privileged credentials (CVSS PR:L) but no user interaction, enabling complete compromise of confidentiality, integrity, and availability. …

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RemediationAI

Within 24 hours: Inventory all Windows 10, 11, and Server 2019-2025 systems and identify patch versions from Microsoft security advisory for CVE-2026-32078. Within 7 days: Deploy vendor-released patches to all affected endpoints prioritizing servers and systems with remote access or service accounts. …

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EUVD-2026-22509 vulnerability details – vuln.today
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