QNAP Users Alert: Patch Critical ASP.NET Flaw Now or Risk Credential Hijack!
QNAP warns users about a critical ASP.NET flaw in the NetBak PC Agent, identified as CVE-2025-55315. This vulnerability allows attackers to hijack credentials or bypass security using HTTP smuggling. It’s like a digital heist led by sneaky HTTP requests, proving even tech has its comedic plot twists!

Hot Take:
Ah, the joys of cybersecurity! Just when you thought it was safe to use your computer, along comes a critical ASP.NET flaw to remind us that nothing is ever truly secure. It’s like the universe’s way of saying, “Patch it or lose it, folks!”
Key Points:
- QNAP has identified a critical vulnerability (CVE-2025-55315) in the NetBak PC Agent for Windows.
- This flaw allows attackers to hijack credentials or bypass security via HTTP request smuggling.
- It affects the Kestrel server, part of the ASP.NET Core component used by the NetBak PC Agent.
- Users are urged to patch their systems immediately to avoid potential data breaches.
- Two patching methods are available: reinstalling the NetBak PC Agent or manually updating ASP.NET Core.
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