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TI-2026-31167 Aliases CVE-2026-42985GHSA-c52c-3v9x-965h

Remote Desktop Client Remote Code Execution Vulnerability

Priority MEDIUM 43CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
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

Use after free 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 0.0126 69th percentileScored 2026-11-07
Fix Fixed Microsoft: 10 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 10 Version 160710.0.14393.0 to before 10.0.14393.923410.0.14393.9234Patch availableCNA
MicrosoftWindows 10 Version 180910.0.17763.0 to before 10.0.17763.888010.0.17763.8880Patch availableCNA
MicrosoftWindows 10 Version 21H210.0.19044.0 to before 10.0.19044.741710.0.19044.7417Patch availableCNA
MicrosoftWindows 10 Version 22H210.0.19045.0 to before 10.0.19045.741710.0.19045.7417Patch 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 App Client for Windows Desktop1.00 to before 2.0.1193.02.0.1193.0Patch availableCNA
MicrosoftWindows Server 20126.2.9200.0 to before 6.2.9200.261326.2.9200.26132Patch availableCNA
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0 to before 6.2.9200.261326.2.9200.26132Patch availableCNA
MicrosoftWindows Server 2012 R26.3.9600.0 to before 6.3.9600.232286.3.9600.23228Patch availableCNA
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0 to before 6.3.9600.232286.3.9600.23228Patch availableCNA
MicrosoftWindows Server 201610.0.14393.0 to before 10.0.14393.923410.0.14393.9234Patch availableCNA
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 to before 10.0.14393.923410.0.14393.9234Patch availableCNA
MicrosoftWindows Server 201910.0.17763.0 to before 10.0.17763.888010.0.17763.8880Patch availableCNA
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 to before 10.0.17763.888010.0.17763.8880Patch 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 10 Version 1607 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.9234 Fixed in 10.0.14393.9234 Patch available CNA
  • Windows 10 Version 1809 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.8880 Fixed in 10.0.17763.8880 Patch available CNA
  • Windows 10 Version 21H2 VendorMicrosoft Affected 10.0.19044.0 to before 10.0.19044.7417 Fixed in 10.0.19044.7417 Patch available CNA
  • Windows 10 Version 22H2 VendorMicrosoft Affected 10.0.19045.0 to before 10.0.19045.7417 Fixed in 10.0.19045.7417 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 App Client for Windows Desktop VendorMicrosoft Affected 1.00 to before 2.0.1193.0 Fixed in 2.0.1193.0 Patch available CNA
  • Windows Server 2012 VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.26132 Fixed in 6.2.9200.26132 Patch available CNA
  • Windows Server 2012 (Server Core installation) VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.26132 Fixed in 6.2.9200.26132 Patch available CNA
  • Windows Server 2012 R2 VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.23228 Fixed in 6.3.9600.23228 Patch available CNA
  • Windows Server 2012 R2 (Server Core installation) VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.23228 Fixed in 6.3.9600.23228 Patch available CNA
  • Windows Server 2016 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.9234 Fixed in 10.0.14393.9234 Patch available CNA
  • Windows Server 2016 (Server Core installation) VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.9234 Fixed in 10.0.14393.9234 Patch available CNA
  • Windows Server 2019 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.8880 Fixed in 10.0.17763.8880 Patch available CNA
  • Windows Server 2019 (Server Core installation) VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.8880 Fixed in 10.0.17763.8880 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 · 26

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:remote_desktop_client:*:*:*:*:*:windows:*:*before 1.2.7214VulnerableMicrosoft
cpe:2.3:a:microsoft:windows_app:*:*:*:*:*:windows:*:*before 2.0.1193.0VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*before 10.0.14393.9234VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*before 10.0.14393.9234VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*before 10.0.17763.8880VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*before 10.0.17763.8880VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*before 10.0.19044.7417VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*before 10.0.19044.7417VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*before 10.0.19044.7417VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*before 10.0.19045.7417VulnerableMicrosoft
  • cpe:2.3:a:microsoft:remote_desktop_client:*:*:*:*:*:windows:*:* Versions before 1.2.7214 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:windows_app:*:*:*:*:*:windows:*:* Versions before 2.0.1193.0 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* Versions before 10.0.14393.9234 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* Versions before 10.0.14393.9234 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* Versions before 10.0.17763.8880 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* Versions before 10.0.17763.8880 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:* Versions before 10.0.19044.7417 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* Versions before 10.0.19044.7417 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:* Versions before 10.0.19044.7417 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:* Versions before 10.0.19045.7417 Vulnerable ·Microsoft
Show 16 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*before 10.0.19045.7417VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*before 10.0.19045.7417VulnerableMicrosoft
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_2012:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*r2VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*before 10.0.14393.9234VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*before 10.0.17763.8880VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*before 10.0.20348.5256VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*before 10.0.26100.32995VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* Versions before 10.0.19045.7417 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:* Versions before 10.0.19045.7417 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_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* Versions before 10.0.14393.9234 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* Versions before 10.0.17763.8880 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* Versions before 10.0.20348.5256 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:* Versions before 10.0.26100.32995 Vulnerable ·Microsoft

Remediation

Microsoft 10 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
  • KB5094127
    Security Update
    • Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.7417
    • Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.7417
    • Windows 10 Version 21H2 for x64-based Systems 10.0.19044.7417
    • Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.7417
    • Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.7417
    • Windows 10 Version 22H2 for x64-based Systems 10.0.19045.7417
    • Windows Server, version 2004 (Server Core installation) 10.0.19045.7417
Show 7 more Microsoft updates
  • 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
  • KB5094125
    Security Update
    • Windows Server 2025 10.0.26100.32995
    • Windows Server 2025 (Server Core installation) 10.0.26100.32995
  • KB5094123
    Security Update
    • Windows 10 Version 1809 for 32-bit Systems 10.0.17763.8880
    • Windows 10 Version 1809 for x64-based Systems 10.0.17763.8880
    • Windows Server 2019 10.0.17763.8880
    • Windows Server 2019 (Server Core installation) 10.0.17763.8880
  • KB5094122
    Security Update
    • Windows 10 Version 1607 for 32-bit Systems 10.0.14393.9234
    • Windows 10 Version 1607 for x64-based Systems 10.0.14393.9234
    • Windows Server 2016 10.0.14393.9234
    • Windows Server 2016 (Server Core installation) 10.0.14393.9234
  • KB5094042
    Monthly Rollup
    • Windows Server 2012 6.2.9200.26132
    • Windows Server 2012 (Server Core installation) 6.2.9200.26132
  • KB5094041
    Monthly Rollup
    • Windows Server 2012 R2 6.3.9600.23228
    • Windows Server 2012 R2 (Server Core installation) 6.3.9600.23228
  • 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 More Likely
ProductStatusPlan or fix
Remote Desktop client for Windows DesktopFixed 1.2.7214.0 · Security Update
Windows App Client for Windows DesktopFixed 2.0.1193.0 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42985
  2. 2026-10-03 Alias added: GHSA-c52c-3v9x-965h

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-2024-25415 Clipboard Virtual Channel Extension 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