Microsoft Security Advisory CVE-2026-70354 – .NET Core Remote Code Execution Vulnerability

Date Aug 11, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product NuGet · Microsoft.WindowsDesktop.App.Runtime.win-arm64
CVE CVE-2026-70354
High-risk advisory CVE-2026-70354

Summary

Microsoft Security Advisory CVE-2026-70354 – .NET Core Remote Code Execution Vulnerability

Why it matters

GitHub has published a reviewed security advisory for Microsoft.WindowsDesktop.App.Runtime.win-arm64. Prioritize it with other application dependency updates.

Operator check

Check whether Microsoft.WindowsDesktop.App.Runtime.win-arm64 is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.