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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-54990

Remote Desktop Client Remote Code Execution Vulnerability

Description

Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Microsoft Windows 11 Version 24H2

  • 10.0.26100.0 to < 10.0.26100.8875affected

Microsoft Windows 11 Version 25H2

  • 10.0.26200.0 to < 10.0.26200.8875affected

Microsoft Windows 11 version 26H1

  • 10.0.28000.0 to < 10.0.28000.2525affected

Microsoft Windows Server 2025

  • 10.0.26100.0 to < 10.0.26100.33158affected

Microsoft Windows Server 2025 (Server Core installation)

  • 10.0.26100.0 to < 10.0.26100.33158affected

References