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Microsoft Security Response CenterCVE-2026-114155

.NET Elevation of Privilege Vulnerability

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

Summary

Time-of-check time-of-use (toctou) race condition in .NET allows an authorized attacker to elevate privileges locally.

Products covered

  • Microsoft.DotNet.HotReload.Watch.Aspire on Linux

  • Microsoft.DotNet.HotReload.Watch.Aspire on Mac OS

  • .NET 10.0 installed on Linux

  • .NET 10.0 installed on Mac OS

  • .NET 11.0 installed on Linux

  • .NET 11.0 installed on Mac OS

Remediation

Release Notes Install KB5135241.

Vendor-listed fixes

  • 11.0.100

  • 10.0.404

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.