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 versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later
Metrics
CVSS 3.1 4.9/10
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| QNAP Systems Inc. | QTS | >= 5.2.x, < 5.2.6.3195 build 20250715 |
| QNAP Systems Inc. | QuTS hero | >= h5.2.x, < h5.2.6.3195 build 20250715 |
References
- https://www.qnap.com/en/security-advisory/qsa-25-36Vendor Advisory
Timeline
- Published
- Oct 3, 2025
- Last modified
- Oct 18, 2026
- NVD status
- Analyzed