NULL Pointer Dereference Security Flaw in Qsync Central by QNAP

CVE-2025-54146

What is CVE-2025-54146?

A NULL pointer dereference vulnerability has been identified in Qsync Central. This flaw allows remote attackers who have gained user account access to exploit the system. By leveraging this vulnerability, an attacker can initiate a denial-of-service (DoS) attack, disrupting the normal operation of Qsync Central. It is important for users to update to version 5.0.0.4 or later, released on January 20, 2026, to mitigate this risk.

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