CVE-2026-70174: Microsoft Security Advisory CVE-2026-70174 - .NET and Visual Studio Remote Code Execution Vulnerability

October 13, 2026 (updated October 19, 2026)

Microsoft is releasing this security advisory to provide information about a vulnerability in Microsoft.WindowsDesktop.App.Runtime (WPF). This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

WPF XPS hyperlink navigation can bypass URI restrictions and reach an attacker-controlled ObjectDataProvider, enabling remote code execution after user interaction.

References

Code Behaviors & Features

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