Vulnerability in Microsoft Windows Server 2016

CVE-2025-21225

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

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.016 (74.1th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-21225: held from 0.016 to 0.016.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-21225?
CVE-2025-21225 is a medium-severity vulnerability in Microsoft Windows Server 2016, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 5.9/10. Published 2025-01-14.
How severe is CVE-2025-21225?
Medium severity. CVSS v3 base score is 5.9 out of 10.