Main Vulnerability Database Vulnerabilities #VU138264

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: 7 [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]

CVE-ID: CVE-2026-56171

CWE-ID: CWE-359

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

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.

Affected software

Remote Desktop Web Client
Windows Admin Center

How to mitigate CVE-2026-56171

Install updates from vendor's website.

Remote Desktop Web Client - update to 2.1.65.2
Windows Admin Center - update to 2.7.4

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56171

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