Denial of Service Vulnerability in Remote Desktop Gateway Service by Microsoft
CVE-2025-26677

7.5HIGH

Key Information:

Vendor

Microsoft
Status
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Windows Server 2025 (server Core Installation)
Vendor
CVE Published:
13 May 2025

What is CVE-2025-26677?

The Remote Desktop Gateway Service is susceptible to a denial of service attack due to uncontrolled resource consumption, allowing unauthorized attackers to disrupt service functionality over a network. Attackers exploiting this vulnerability can lead to considerable downtime, affecting users reliant on Remote Desktop services for connectivity.

Affected Version(s)

Windows Server 2016 (Server Core installation) x64-based Systems 10.0.14393.0 < 10.0.14393.8066

Windows Server 2016 x64-based Systems 10.0.14393.0 < 10.0.14393.8066

Windows Server 2019 (Server Core installation) x64-based Systems 10.0.17763.0 < 10.0.17763.7314

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-26677 : Denial of Service Vulnerability in Remote Desktop Gateway Service by Microsoft