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TI-2025-21238 Aliases CVE-2025-29831GHSA-799h-p6qr-g4rf

Windows Remote Desktop Services Remote Code Execution Vulnerability

Priority LOW 37CWE-416Published · 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

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01014 63rd percentileScored 2026-11-07
Fix Fixed Microsoft: 11 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
MicrosoftWindows Server 2008 R2 Service Pack 16.1.7601.0 to before 6.1.7601.277296.1.7601.27729Patch availableCNA
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0 to before 6.1.7601.277296.1.7601.27729Patch availableCNA
MicrosoftWindows Server 20126.2.9200.0 to before 6.2.9200.254756.2.9200.25475Patch availableCNA
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0 to before 6.2.9200.254756.2.9200.25475Patch availableCNA
MicrosoftWindows Server 2012 R26.3.9600.0 to before 6.3.9600.225776.3.9600.22577Patch availableCNA
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0 to before 6.3.9600.225776.3.9600.22577Patch availableCNA
MicrosoftWindows Server 201610.0.14393.0 to before 10.0.14393.806610.0.14393.8066Patch availableCNA
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 to before 10.0.14393.806610.0.14393.8066Patch availableCNA
MicrosoftWindows Server 201910.0.17763.0 to before 10.0.17763.731410.0.17763.7314Patch availableCNA
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 to before 10.0.17763.731410.0.17763.7314Patch availableCNA
MicrosoftWindows Server 202210.0.20348.0 to before 10.0.20348.369210.0.20348.3692Patch availableCNA
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0 to before 10.0.25398.161110.0.25398.1611Patch availableCNA
MicrosoftWindows Server 202510.0.26100.0 to before 10.0.26100.406110.0.26100.4061Patch availableCNA
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 to before 10.0.26100.406110.0.26100.4061Patch availableCNA
  • Windows Server 2008 R2 Service Pack 1 VendorMicrosoft Affected 6.1.7601.0 to before 6.1.7601.27729 Fixed in 6.1.7601.27729 Patch available CNA
  • Windows Server 2008 R2 Service Pack 1 (Server Core installation) VendorMicrosoft Affected 6.1.7601.0 to before 6.1.7601.27729 Fixed in 6.1.7601.27729 Patch available CNA
  • Windows Server 2012 VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.25475 Fixed in 6.2.9200.25475 Patch available CNA
  • Windows Server 2012 (Server Core installation) VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.25475 Fixed in 6.2.9200.25475 Patch available CNA
  • Windows Server 2012 R2 VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.22577 Fixed in 6.3.9600.22577 Patch available CNA
  • Windows Server 2012 R2 (Server Core installation) VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.22577 Fixed in 6.3.9600.22577 Patch available CNA
  • Windows Server 2016 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.8066 Fixed in 10.0.14393.8066 Patch available CNA
  • Windows Server 2016 (Server Core installation) VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.8066 Fixed in 10.0.14393.8066 Patch available CNA
  • Windows Server 2019 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.7314 Fixed in 10.0.17763.7314 Patch available CNA
  • Windows Server 2019 (Server Core installation) VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.7314 Fixed in 10.0.17763.7314 Patch available CNA
  • Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.3692 Fixed in 10.0.20348.3692 Patch available CNA
  • Windows Server 2022, 23H2 Edition (Server Core installation) VendorMicrosoft Affected 10.0.25398.0 to before 10.0.25398.1611 Fixed in 10.0.25398.1611 Patch available CNA
  • Windows Server 2025 VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.4061 Fixed in 10.0.26100.4061 Patch available CNA
  • Windows Server 2025 (Server Core installation) VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.4061 Fixed in 10.0.26100.4061 Patch available CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*r2 sp1VulnerableMicrosoft
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 10.0.14393.8066VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*before 10.0.17763.7314VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*before 10.0.20348.3692VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*before 10.0.25398.1611VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*before 10.0.26100.4061VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* Versions r2 sp1 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 10.0.14393.8066 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* Versions before 10.0.17763.7314 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* Versions before 10.0.20348.3692 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* Versions before 10.0.25398.1611 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* Versions before 10.0.26100.4061 Vulnerable ·Microsoft

Remediation

Microsoft 11 updates

  • KB5058500
    SecurityHotpatchUpdate
    • Windows Server 2022 10.0.20348.3630
    • Windows Server 2022 (Server Core installation) 10.0.20348.3630
  • KB5058497
    SecurityHotpatchUpdate
    • Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.3981
    • Windows 11 Version 24H2 for x64-based Systems 10.0.26100.3981
    • Windows Server 2025 10.0.26100.3981
    • Windows Server 2025 (Server Core installation) 10.0.26100.3981
  • KB5058454
    Security Only
    • Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.27729
    • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.27729
Show 8 more Microsoft updates
  • KB5058451
    Monthly Rollup
    • Windows Server 2012 6.2.9200.25475
    • Windows Server 2012 (Server Core installation) 6.2.9200.25475
  • KB5058430
    Monthly Rollup
    • Windows Server 2008 R2 for x64-based Systems Service Pack 1 6.1.7601.27729
    • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 6.1.7601.27729
  • KB5058411
    Security Update
    • Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.4061
    • Windows 11 Version 24H2 for x64-based Systems 10.0.26100.4061
    • Windows Server 2025 10.0.26100.4061
    • Windows Server 2025 (Server Core installation) 10.0.26100.4061
  • KB5058403
    Monthly Rollup
    • Windows Server 2012 R2 6.3.9600.22577
    • Windows Server 2012 R2 (Server Core installation) 6.3.9600.22577
  • KB5058392
    Security Update
    • Windows 10 Version 1809 for 32-bit Systems 10.0.17763.7314
    • Windows 10 Version 1809 for x64-based Systems 10.0.17763.7314
    • Windows Server 2019 10.0.17763.7314
    • Windows Server 2019 (Server Core installation) 10.0.17763.7314
  • KB5058385
    Security Update
    • Windows Server 2022 10.0.20348.3692
    • Windows Server 2022 (Server Core installation) 10.0.20348.3692
  • KB5058384
    Security Update
    • Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1611
  • KB5058383
    Security Update
    • Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8066
    • Windows 10 Version 1607 for x64-based Systems 10.0.14393.8066
    • Windows Server 2016 10.0.14393.8066
    • Windows Server 2016 (Server Core installation) 10.0.14393.8066

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Remote Code Execution
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Unlikely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-29831
  2. 2026-10-03 Alias added: GHSA-799h-p6qr-g4rf

References

Patch 1

  • TI-2020-01431 Netlogon Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-01310 Improper input validation in Microsoft Windows Server KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-00485 Use after free in Microsoft Windows KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-06077 Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista… KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-01465 HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1… KEVCVSS 3.1CRITICAL 9.8
  • TI-2008-04072 The Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and… KEVCVSS 3.1CRITICAL 9.8
See all 3551 →

Sources

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