QNAP QTS and QuTS hero NULL Pointer Dereference Vulnerability Leading to Denial-of-Service

A NULL pointer dereference vulnerability has been identified in QNAP QTS versions 5.2.x and QuTS hero versions h5.2.x and h5.3.x. This vulnerability allows remote attackers with user account access to cause a denial-of-service (DoS) condition by exploiting the NULL pointer dereference.

Impact

Exploitation of this vulnerability leads to a denial-of-service condition, causing affected systems to become unresponsive or unavailable.

Remediation

Users can update to QTS 5.2.7.3256 build 20250913 or later, or QuTS hero h5.2.7.3256 build 20250913 or h5.3.1.3250 build 20250912 or later. Instructions for updating QTS or QuTS hero are available on the QNAP website.