Recorded 10 Nov 2026 at 18:32 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position.
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CVEMicrosoft Security Response Center
ASP.NET Core Security Feature Bypass Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges locally.
CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Issued by
Microsoft
Customer action
Required: follow the MSRC remediation guidance
Affected products
.NET 10.0 installed on Windows, .NET 11.0 installed on Windows, .NET 8.0 installed on Windows, .NET 9.0 installed on Windows, Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.11, Microsoft Visual Studio 2026 version 18.12
Updates that fix it
KB5135241: .NET 10.0 installed on Windows; KB5135242: .NET 9.0 installed on Windows; KB5135243: .NET 8.0 installed on Windows