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Microsoft Security Response CenterCVE-2026-62705

Microsoft Brokering File System Elevation of Privilege Vulnerability

HighVendor CVSS 7.0 / 10 1 CVE Published Aug 11, 2026 at 7:00 AM UTC

Summary

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.

Products covered

  • 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 11 version 26H1 for x64-based Systems

  • Windows 11 Version 26H1 for ARM64-based Systems

Remediation

Install KB5121003. Install KB5120994. Install KB5121000.

Vendor-listed fixes

  • 10.0.26200.9168

  • 10.0.26200.9106

  • 10.0.26100.9168

  • 10.0.26100.9106

  • 10.0.28000.2704

CVEs in this advisory 1

Update history

What changed in later vendor updates

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    • The vendor changed its remediation guidance.

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.