High [CVE-2026-56171] Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
This high-severity Microsoft Server advisory covers CVE-2026-56171 affecting Remote Desktop Web Client.
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Summary
Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network.
Affected product named by the advisory: Remote Desktop Web Client.
- Remote Desktop Web Client 2.0.0.0 before 2.1.65.2
- Windows Admin Center 1809.0 before 2.7.4
Official advisory · high-confidence parse· fetched 14 hours ago·verify at source
- 2.1.65.2
- 2.7.4
Official advisory · high-confidence parse· fetched 14 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 2.1.65.2, 2.7.4. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 14 hours ago·verify at source
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