Microsoft Confirms Remote Desktop Warnings May Display Incorrectly After April Update

Microsoft acknowledged that the April 2026 Windows 11 cumulative updates (KB5083769 / KB5083768) introduced new RDP security warnings but also a rendering bug on mixed-DPI multi-monitor setups that can overlap text or hide buttons, impairing users' ability to review critical remote-desktop security prompts; the updates were tied to mitigation for CVE-2026-26151 (a Remote Desktop spoofing vulnerability previously exploited in the wild), and Microsoft plans a future cumulative update to permanently fix the issue while advising administrators to monitor affected workstations.