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Microsoft Security Response CenterCVE-2026-69805

.NET Elevation of Privilege Vulnerability

HighVendor CVSS 7.5 / 10 1 CVE Published Sep 8, 2026 at 7:00 AM UTC

Summary

External control of file name or path in .NET allows an unauthorized attacker to elevate privileges over a network.

Products covered

  • Microsoft Visual Studio 2022 version 17.14

  • Microsoft Visual Studio 2026 version 18.9

  • Microsoft.Diagnostics.Runtime

Remediation

Release Notes

Vendor-listed fixes

  • 17.14.40

  • 18.9.3

  • 4.1.740301

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.