VulnerabilityAnalyzed
CVE-2025-21309
Windows Remote Desktop Services Remote Code Execution Vulnerability
HIGH 8.1EPSS 14.9%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 14.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
Windows Remote Desktop Services Remote Code Execution Vulnerability
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 14.86% probability · 96th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-591
- Affected
- microsoft/windows server 2012 · 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
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21309Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.