Critical severity · published Aug 12, 2025
CVE-2025-50171
Missing authorization in Remote Desktop Server allows an unauthorized attacker to perform spoofing over a network
9.1
CVSS
1%
EPSS
No
On KEV
Description
Missing authorization in Remote Desktop Server allows an unauthorized attacker to perform spoofing over a network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WS
Windows Server 2022 · Microsoft
before 10.0.20348.3989 · source: NVD
WS
Windows Server 2022 23h2 · Microsoft
before 10.0.25398.1791 · source: NVD
WS
Windows Server 2025 · Microsoft
before 10.0.26100.4851 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-50171
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-50171
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-50171
More from Windows Server 2022
9.8
CVE-2026-33824
Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability
9.8
CVE-2025-59287
Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
8.8
CVE-2026-96951
Windows Shell Security Feature Bypass Vulnerability
8.8
CVE-2026-21510
Windows Shell Security Feature Bypass Vulnerability
8.8
CVE-2026-21513
MSHTML Framework Security Feature Bypass Vulnerability