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Microsoft Security Response CenterCVE-2026-44808

Windows DWM Core Library Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Read the vendor bulletin Get alerts for Windows
7.8CVSS out of 10High severity
Scope

What the vendor says is affected

  • Windows 11 version 26H1 for x64-based Systems
  • Windows 11 Version 26H1 for ARM64-based Systems

Versions the vendor lists as fixed

  • 10.0.28000.2269
Next step

What the vendor recommends

Install KB5095051.

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  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.

Vulnerabilities

CVEs named in this advisory

CVE-2026-44808View CVSS, KEV, EPSS, and threat context
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