Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2025-21389
CVE-2025-21389:
vulnerability analysis and mitigation
Overview
A Windows upnphost.dll Denial of Service Vulnerability, identified as CVE-2025-21389, was disclosed on January 14, 2025. The vulnerability affects multiple versions of Microsoft Windows operating systems, including Windows 10, Windows 11, and various Windows Server editions (NVD).
Technical details
The vulnerability has been assigned a CVSS v3.1 Base Score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Microsoft has classified this as CWE-400 (Uncontrolled Resource Consumption) (NVD).
Impact
This vulnerability specifically affects the availability of the system through the upnphost.dll component, potentially leading to denial of service conditions. The CVSS scoring indicates high impact on system availability with no direct impact on confidentiality or integrity (NVD).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability. The patches are available for affected systems including Windows 10 (versions 1507 through 22H2), Windows 11 (versions 22H2 through 24H2), and Windows Server versions from 2008 to 2025 (NVD).
Additional resources
Source: This report was generated using AI
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