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Microsoft Security Response CenterCVE-2026-47654

Remote Desktop Client Remote Code Execution Vulnerability

CriticalVendor CVSS 7.5 / 10 1 CVE Published Jun 9, 2026 at 7:00 AM UTC

Summary

Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Products covered

  • Windows Server 2019

  • Windows Server 2019 (Server Core installation)

  • Windows Server 2022

  • Windows Server 2022 (Server Core installation)

  • Windows Server 2025 (Server Core installation)

  • Windows Server 2025

  • Windows Server 2016

  • Windows Server 2016 (Server Core installation)

Remediation

Install KB5094123. Install KB5094128. Install KB5094125. Install KB5094122.

Vendor-listed fixes

  • 10.0.17763.8880

  • 10.0.20348.5256

  • 10.0.26100.32995

  • 10.0.14393.9234

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.