Vulnerability Description
Uncontrolled resource consumption in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to deny service over a network.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1507 | < 10.0.10240.20890 |
| Microsoft | Windows 10 1607 | < 10.0.14393.7699 |
| Microsoft | Windows 10 1809 | < 10.0.17763.6775 |
| Microsoft | Windows 10 21H2 | < 10.0.19044.5371 |
| Microsoft | Windows 10 22H2 | < 10.0.19045.5371 |
| Microsoft | Windows 11 22H2 | < 10.0.22621.4751 |
| Microsoft | Windows 11 23H2 | < 10.0.22631.4751 |
| Microsoft | Windows 11 24H2 | < 10.0.26100.2894 |
| Microsoft | Windows Server 2008 | - |
| Microsoft | Windows Server 2012 | - |
| Microsoft | Windows Server 2016 | < 10.0.14393.7699 |
| Microsoft | Windows Server 2019 | < 10.0.17763.6775 |
| Microsoft | Windows Server 2022 | < 10.0.20348.3091 |
| Microsoft | Windows Server 2022 23H2 | < 10.0.25398.1369 |
| Microsoft | Windows Server 2025 | < 10.0.26100.2894 |
Related Weaknesses (CWE)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21389PatchVendor Advisory
FAQ
What is CVE-2025-21389?
CVE-2025-21389 is a vulnerability with a CVSS score of 7.5 (HIGH). Uncontrolled resource consumption in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to deny service over a network.
How severe is CVE-2025-21389?
CVE-2025-21389 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-21389?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21H2, Microsoft Windows 10 22H2.