Exposure of Private Information ('Privacy Violation') in Remote Desktop Web Client and Windows Admin Center - CVE-2026-56171
Published: July 17, 2026
Vulnerability identifier: #VU138264
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-56171
CWE-ID: CWE-359
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Remote Desktop Web Client
Windows Admin Center
Remote Desktop Web Client
Windows Admin Center
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to exposure of private personal information to an unauthorized actor in Windows Remote Desktop Protocol (RDP). A remote attacker can gain unauthorized access to sensitive information on the system.
How to mitigate CVE-2026-56171
Install updates from vendor's website.