CVE-2026-70174

Name of the Vulnerable Software and Affected Versions Microsoft.WindowsDesktop.App.Runtime.win-arm64 versions 8.0.0 through 8.0.31 Microsoft.WindowsDesktop.App.Runtime.win-x64 versions 8.0.0 through 8.0.31 Microsoft.WindowsDesktop.App.Runtime.win-x86 versions 8.0.0 through 8.0.31 Microsoft.WindowsDesktop.App.Runtime.win-arm64 versions 9.0.0 through 9.0.20 Microsoft.WindowsDesktop.App.Runtime.win-x64 versions 9.0.0 through 9.0.20 Microsoft.WindowsDesktop.App.Runtime.win-x86 versions 9.0.0 through 9.0.20 Microsoft.WindowsDesktop.App.Runtime.win-arm64 versions 10.0.0 through 10.0.12 Microsoft.WindowsDesktop.App.Runtime.win-x64 versions 10.0.0 through 10.0.12 Microsoft.WindowsDesktop.App.Runtime.win-x86 versions 10.0.0 through 10.0.12 Microsoft.WindowsDesktop.App.Runtime.win-arm64 versions 11.0.0-preview.1 through 11.0.0-rc.1 Microsoft.WindowsDesktop.App.Runtime.win-x64 versions 11.0.0-preview.1 through 11.0.0-rc.1 Microsoft.WindowsDesktop.App.Runtime.win-x86 versions 11.0.0-preview.1 through 11.0.0-rc.1

Description An improperly implemented security check in .NET allows an unauthorized attacker to execute code over a network. Specifically, WPF XPS hyperlink navigation can bypass URI restrictions to reach an attacker-controlled ObjectDataProvider, enabling remote code execution after user interaction.

Recommendations Update Microsoft.WindowsDesktop.App.Runtime.win-arm64 versions 8.0.0 through 8.0.31 to version 8.0.32. Update Microsoft.WindowsDesktop.App.Runtime.win-x64 versions 8.0.0 through 8.0.31 to version 8.0.32. Update Microsoft.WindowsDesktop.App.Runtime.win-x86 versions 8.0.0 through 8.0.31 to version 8.0.32. Update Microsoft.WindowsDesktop.App.Runtime.win-arm64 versions 9.0.0 through 9.0.20 to version 9.0.21. Update Microsoft.WindowsDesktop.App.Runtime.win-x64 versions 9.0.0 through 9.0.20 to version 9.0.21. Update Microsoft.WindowsDesktop.App.Runtime.win-x86 versions 9.0.0 through 9.0.20 to version 9.0.21. Update Microsoft.WindowsDesktop.App.Runtime.win-arm64 versions 10.0.0 through 10.0.12 to version 10.0.13. Update Microsoft.WindowsDesktop.App.Runtime.win-x64 versions 10.0.0 through 10.0.12 to version 10.0.13. Update Microsoft.WindowsDesktop.App.Runtime.win-x86 versions 10.0.0 through 10.0.12 to version 10.0.13. Update Microsoft.WindowsDesktop.App.Runtime.win-arm64 versions 11.0.0-preview.1 through 11.0.0-rc.1 to version 11.0.0-rc.2. Update Microsoft.WindowsDesktop.App.Runtime.win-x64 versions 11.0.0-preview.1 through 11.0.0-rc.1 to version 11.0.0-rc.2. Update Microsoft.WindowsDesktop.App.Runtime.win-x86 versions 11.0.0-preview.1 through 11.0.0-rc.1 to version 11.0.0-rc.2. Self-contained applications targeting any of the impacted versions must be recompiled and redeployed.