EUVD-2026-22501
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation via double free vulnerability in Windows Projected File System (ProjFS) enables low-privileged authenticated users to achieve SYSTEM-level access across Windows 10, Windows 11, and Windows Server environments. The CWE-415 memory corruption flaw requires low attack complexity and no user interaction, affecting all actively supported Windows versions from legacy 1809 builds through current 26H1 releases. …
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RemediationAI
Within 24 hours: Inventory all Windows 10, 11, and Server systems in your environment and identify current build versions using 'winver' or WSUS reporting. Within 7 days: Deploy vendor-released patches to all affected systems through your change management process; prioritize servers and high-value endpoints first. …
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External POC / Exploit Code
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