Description
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If can then exploit the vulnerability to launch a denial-of-service (DoS) attack.
We have already fixed the vulnerability in the following versions:
QTS 5.2.5.3145 build 20250526 and later
QuTS hero h5.2.5.3138 build 20250519 and later
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| QNAP Systems | QTS | 5.2.x – < 5.2.5.3145 build 20250526 | 5.2.5.3145 build 20250526 |
| QNAP Systems | QuTS hero | h5.2.x – < h5.2.5.3138 build 20250519 | h5.2.5.3138 build 20250519 |
Advisories 1
- WID-SEC-2025-1936 QNAP NAS QTS und QTS hero: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 31, 2025