Back to vendor advisories
Microsoft Security Response CenterCVE-2026-50327

Windows Media Remote Code Execution Vulnerability

CriticalVendor CVSS 7.8 / 10 1 CVE Published Jul 14, 2026 at 7:00 AM UTC

Summary

Heap-based buffer overflow in Windows Media allows an authorized attacker to execute code locally.

Products covered

  • Windows Server 2025 (Server Core installation)

  • Windows 11 Version 25H2 for ARM64-based Systems

  • Windows 11 Version 25H2 for x64-based Systems

  • Windows 11 Version 24H2 for ARM64-based Systems

  • Windows 11 Version 24H2 for x64-based Systems

  • Windows Server 2025

  • Windows 11 version 26H1 for x64-based Systems

  • Windows 11 Version 26H1 for ARM64-based Systems

Remediation

Install KB5099536. Install KB5101650. Install KB5101649.

Vendor-listed fixes

  • 10.0.26100.33158

  • 10.0.26200.8875

  • 10.0.26100.8875

  • 10.0.28000.2525

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.