Description
A buffer overflow 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 modify memory or crash processes.
We have already fixed the vulnerability in the following version:
QTS 5.2.8.3332 build 20251128 and later
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| QNAP Systems | QTS | 5.2.x – < 5.2.8.3332 build 20251128 | 5.2.8.3332 build 20251128 |
Advisories 1
- WID-SEC-2026-0011 QNAP NAS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 4, 2026