CVE-2026-70035
High
Description
Deserialization of untrusted data in .NET Framework allows an unauthorized attacker to execute code over a network.
SeverityHigh
CVSS8.8
Exploit probability—
ProductMicrosoft.windowsdesktop.app.runtime.win-arm64
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Update
- Microsoft.WindowsDesktop.App.Runtime.win-arm6410.0.13, 8.0.32, 9.0.21, 11.0.0-rc.2 or later
- Microsoft.WindowsDesktop.App.Runtime.win-x6410.0.13, 8.0.32, 9.0.21, 11.0.0-rc.2 or later
- Microsoft.WindowsDesktop.App.Runtime.win-x8610.0.13, 8.0.32, 9.0.21, 11.0.0-rc.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft.WindowsDesktop.App.Runtime.win-arm64NuGet | 10.0.0 ≤ v < 10.0.13, 8.0.0 ≤ v < 8.0.32, 9.0.0 ≤ v < 9.0.21, 11.0.0-preview.1 ≤ v < 11.0.0-rc.2 | 10.0.13, 8.0.32, 9.0.21, 11.0.0-rc.2 |
| Microsoft.WindowsDesktop.App.Runtime.win-x64NuGet | 10.0.0 ≤ v < 10.0.13, 8.0.0 ≤ v < 8.0.32, 9.0.0 ≤ v < 9.0.21, 11.0.0-preview.1 ≤ v < 11.0.0-rc.2 | 10.0.13, 8.0.32, 9.0.21, 11.0.0-rc.2 |
| Microsoft.WindowsDesktop.App.Runtime.win-x86NuGet | 10.0.0 ≤ v < 10.0.13, 8.0.0 ≤ v < 8.0.32, 9.0.0 ≤ v < 9.0.21, 11.0.0-preview.1 ≤ v < 11.0.0-rc.2 | 10.0.13, 8.0.32, 9.0.21, 11.0.0-rc.2 |
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