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Microsoft Security Response CenterCVE-2026-44807

Windows DWM Core Library Elevation of Privilege Vulnerability

HighVendor CVSS 7.8 / 10 1 CVE Published Jun 9, 2026 at 7:00 AM UTC

Summary

Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Products covered

  • Windows 11 version 26H1 for x64-based Systems

  • Windows 11 Version 26H1 for ARM64-based Systems

Remediation

Install KB5095051.

Vendor-listed fixes

  • 10.0.28000.2269

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.