Windows
CVE-2025-21225
MEDIUM
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
Windows Remote Desktop Gateway (RD Gateway) Denial of Service Vulnerability
AnalysisAI
Windows Remote Desktop Gateway (RD Gateway) Denial of Service Vulnerability. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Access of Resource Using Incompatible Type (Type Confusion) vulnerability could allow attackers to execute arbitrary code by exploiting type confusion in the application.
Technical ContextAI
This vulnerability is classified as Access of Resource Using Incompatible Type (Type Confusion) (CWE-843), which allows attackers to execute arbitrary code by exploiting type confusion in the application. Windows Remote Desktop Gateway (RD Gateway) Denial of Service Vulnerability Affected products include: Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23H2, Microsoft Windows Server 2025.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Enforce strict type checking, use type-safe languages, validate object types before operations.
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External POC / Exploit Code
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