CVE-2025-21309
Windows Remote Desktop Services Remote Code Execution Vulnerability
Windows Remote Desktop Services Remote Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Remote Desktop Services Remote Code Execution Vulnerability
Windows Remote Desktop Services Remote Code Execution Vulnerability
- Record
CVE-2025-21309- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-591
- Updated
- 2026-11-02
EUVDEUVD-2025-2374
Windows Remote Desktop Services Remote Code Execution Vulnerability
- Record
EUVD-2025-2374- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-cwpx-vh5m-58gx
Windows Remote Desktop Services Remote Code Execution Vulnerability
Windows Remote Desktop Services Remote Code Execution Vulnerability
- Record
GHSA-cwpx-vh5m-58gx- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-591
- Updated
- 2026-11-02
NVD
Windows Remote Desktop Services Remote Code Execution Vulnerability
- Record
CVE-2025-21309- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-591
- Updated
- 2026-11-02
Affected products
- microsoft windows server 2012
- microsoft windows server 2012 (server core installation)
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (server core installation)
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server 2022, 23h2 edition (server core installation)
- microsoft windows server 2025
- microsoft windows server 2025 (server core installation)
Show 1 moreShow less
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-21309 is a high vulnerability (CVSS 8.1) in Microsoft Windows Server 2012, published January 14, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 15.1%, the 96th percentile. No source names a fixed version.