EUVD-2026-22420CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
6DescriptionNVD
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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