Description
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.
We have already fixed the vulnerability in the following version:
QTS 5.2.7.3256 build 20250913 and later
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| QNAP Systems | QTS | 5.2.x – < 5.2.7.3256 build 20250913 | 5.2.7.3256 build 20250913 |
Advisories 1
- WID-SEC-2026-0011 QNAP NAS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 4, 2026