Description
An authentication bypass by spoofing vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to access resources which are not otherwise accessible without proper authentication.
We have already fixed the vulnerability in the following versions:
QTS 5.2.7.3297 build 20251024 and later
QuTS hero h5.2.7.3297 build 20251024 and later
QuTS hero h5.3.1.3292 build 20251024 and later
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| QNAP Systems | QTS | 5.2.x – < 5.2.7.3297 build 20251024 | 5.2.7.3297 build 20251024 |
| QNAP Systems | QuTS hero | h5.2.x – < h5.2.7.3297 build 20251024, h5.3.x – < h5.3.1.3292 build 20251024 | h5.2.7.3297 build 20251024 |
Advisories 2
- NCSC-2025-0403 Kwetsbaarheden verholpen in QNAP besturingssystemen NCSC-NL (Netherlands) · Dec 29, 2025
- WID-SEC-2025-2529 QNAP NAS QTS und QTS hero: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Dec 15, 2025