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TI-2026-31117 Aliases CVE-2026-42913GHSA-m239-3rrf-2x78

Remote Desktop Client Remote Code Execution Vulnerability

Priority LOW 35CWE-362Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00473 41st percentileScored 2026-11-07
Fix Fixed Microsoft: 5 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftRemote Desktop client for Windows Desktop1.2.0.0 to before 1.2.7214.01.2.7214.0Patch availableCNA
MicrosoftWindows 11 version 23H210.0.22631.0 to before 10.0.22631.721910.0.22631.7219Patch availableCNA
MicrosoftWindows 11 Version 23H210.0.22631.0 to before 10.0.22631.721910.0.22631.7219Patch availableCNA
MicrosoftWindows 11 Version 24H210.0.26100.0 to before 10.0.26100.865510.0.26100.8655Patch availableCNA
MicrosoftWindows 11 Version 25H210.0.26200.0 to before 10.0.26200.865510.0.26200.8655Patch availableCNA
MicrosoftWindows 11 version 26H110.0.28000.0 to before 10.0.28000.226910.0.28000.2269Patch availableCNA
MicrosoftWindows Server 202210.0.20348.0 to before 10.0.20348.525610.0.20348.5256Patch availableCNA
MicrosoftWindows Server 202510.0.26100.0 to before 10.0.26100.3299510.0.26100.32995Patch availableCNA
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 to before 10.0.26100.3299510.0.26100.32995Patch availableCNA
  • Remote Desktop client for Windows Desktop VendorMicrosoft Affected 1.2.0.0 to before 1.2.7214.0 Fixed in 1.2.7214.0 Patch available CNA
  • Windows 11 version 23H2 VendorMicrosoft Affected 10.0.22631.0 to before 10.0.22631.7219 Fixed in 10.0.22631.7219 Patch available CNA
  • Windows 11 Version 23H2 VendorMicrosoft Affected 10.0.22631.0 to before 10.0.22631.7219 Fixed in 10.0.22631.7219 Patch available CNA
  • Windows 11 Version 24H2 VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.8655 Fixed in 10.0.26100.8655 Patch available CNA
  • Windows 11 Version 25H2 VendorMicrosoft Affected 10.0.26200.0 to before 10.0.26200.8655 Fixed in 10.0.26200.8655 Patch available CNA
  • Windows 11 version 26H1 VendorMicrosoft Affected 10.0.28000.0 to before 10.0.28000.2269 Fixed in 10.0.28000.2269 Patch available CNA
  • Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.5256 Fixed in 10.0.20348.5256 Patch available CNA
  • Windows Server 2025 VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.32995 Fixed in 10.0.26100.32995 Patch available CNA
  • Windows Server 2025 (Server Core installation) VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.32995 Fixed in 10.0.26100.32995 Patch available CNA

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:remote_desktop_client:*:*:*:*:*:windows:*:*before 1.2.7214VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*before 10.0.22631.7219VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*before 10.0.22631.7219VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*before 10.0.26100.8655VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*before 10.0.26100.8655VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*before 10.0.26200.8655VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*before 10.0.26200.8655VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*before 10.0.28000.2269VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*before 10.0.28000.2269VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:-:*:x64:*before 10.0.20348.5256VulnerableMicrosoft
  • cpe:2.3:a:microsoft:remote_desktop_client:*:*:*:*:*:windows:*:* Versions before 1.2.7214 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:* Versions before 10.0.22631.7219 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:* Versions before 10.0.22631.7219 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:* Versions before 10.0.26100.8655 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:* Versions before 10.0.26100.8655 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:* Versions before 10.0.26200.8655 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:* Versions before 10.0.26200.8655 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:* Versions before 10.0.28000.2269 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:* Versions before 10.0.28000.2269 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:-:*:x64:* Versions before 10.0.20348.5256 Vulnerable ·Microsoft
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*before 10.0.26100.32995VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:* Versions before 10.0.26100.32995 Vulnerable ·Microsoft

Remediation

Microsoft 5 updates

  • KB5095051
    Security Update
    • Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.2269
    • Windows 11 version 26H1 for x64-based Systems 10.0.28000.2269
  • KB5094128
    Security Update
    • Windows Server 2022 10.0.20348.5256
    • Windows Server 2022 (Server Core installation) 10.0.20348.5256
  • KB5094126
    Security Update
    • Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.8655
    • Windows 11 Version 24H2 for x64-based Systems 10.0.26100.8655
    • Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.8655
    • Windows 11 Version 25H2 for x64-based Systems 10.0.26200.8655
    • Windows Server 2025 10.0.26100.8655
    • Windows Server 2025 (Server Core installation) 10.0.26100.8655
Show 2 more Microsoft updates
  • KB5094125
    Security Update
    • Windows Server 2025 10.0.26100.32995
    • Windows Server 2025 (Server Core installation) 10.0.26100.32995
  • KB5093998
    Security Update
    • Windows 11 Version 22H2 for ARM64-based Systems 10.0.22631.7219
    • Windows 11 Version 22H2 for x64-based Systems 10.0.22631.7219
    • Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.7219
    • Windows 11 Version 23H2 for x64-based Systems 10.0.22631.7219

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Remote Code Execution
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Unlikely
ProductStatusPlan or fix
Remote Desktop client for Windows DesktopFixed 1.2.7214.0 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42913
  2. 2026-10-03 Alias added: GHSA-m239-3rrf-2x78

References

Patch 1

  • TI-2019-00638 Path traversal in Microsoft Multiple CVSS 3.1HIGH 8.0
  • TI-2022-06374 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2021-13557 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2025-19580 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2021-01386 Windows Remote Desktop Security Feature Bypass Vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-31167 Remote Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
See all 29 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences