SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-21225

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

MEDIUM 5.9EPSS 1.55%

Does this matter?

Lower severity and a low EPSS score (1.55%). Track it; it rarely justifies an emergency change on its own.

Description

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

CVSS 3.1
5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.55% probability · 74th percentile
CISA KEV
Not listed
Weakness
CWE-843
Affected
microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022 · microsoft/windows server 2022 23h2 · microsoft/windows server 2025
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.