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TI-2025-19611 Aliases CVE-2025-26677GHSA-p9jx-jr54-2xq2

Windows Remote Desktop Gateway (RD Gateway) Denial of Service Vulnerability

Priority MEDIUM 42CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

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

Summary

Uncontrolled resource consumption in Remote Desktop Gateway Service allows an unauthorized attacker to deny service over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01804 78th percentileScored 2026-11-07
Fix Fixed Microsoft: 7 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

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 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 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 · 5

CPEVersionsRoleVendor
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_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 7 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
  • 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
Show 4 more Microsoft updates
  • 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
Denial of Service
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-26677
  2. 2026-10-03 Alias added: GHSA-p9jx-jr54-2xq2

References

Patch 1

  • TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-36863 Windows Server Update Service (WSUS) Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • 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-2017-06077 Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01009 Improper input validation in Microsoft Windows Server KEVCVSS 3.1CRITICAL 9.0
See all 6400 →

Sources

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