Tag Archives: QNAP

QNAP warns of critical ASP.NET flaw in its Windows backup software

QNAP warns of critical ASP.NET flaw in its Windows backup software

QNAP warned customers to patch a critical ASP.NET Core vulnerability that also impacts the company’s NetBak PC Agent, a Windows utility for backing up data to a QNAP network-attached storage (NAS) device. Tracked as CVE-2025-55315, this security bypass flaw was found in the Kestrel ASP.NET Core web server and enables attackers with low privileges to hijack other users’ credentials or …

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