Microsoft’s ASP.NET Core Bug: Patch Now or Face HTTP Request Smuggling Chaos!

Microsoft has patched a “highest ever” severity vulnerability in ASP.NET Core, specifically targeting the Kestrel web server. The HTTP request smuggling flaw allows attackers to hijack credentials and bypass security controls. To prevent ASP.NET Core security issues, Microsoft urges updates and recompilation. Remember, folks, updating is like eating your veggies—necessary, but often neglected!

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Hot Take:

Well, Microsoft’s done it again – proving that their software can make headlines faster than a teenage pop star with a new single! This time, the tech giant has patched what they’re calling the “highest ever” severity bug in their ASP.NET Core, and the vulnerability is more serious than your grandma’s side-eye when you forget to call. But hey, at least they didn’t name the patch after a cute animal or a fruit, right?

Key Points:

  • Microsoft has patched a severe vulnerability, CVE-2025-55315, in the Kestrel ASP.NET Core web server.
  • The bug allows authenticated attackers to hijack user credentials and bypass security controls.
  • Developers and users are advised to update their .NET applications to mitigate potential attacks.
  • Microsoft’s latest patch includes updates for 172 vulnerabilities, with eight labeled as “Critical.”
  • The recent update also marks the end of support for Windows 10, giving it a bittersweet farewell.

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