CVE-2025-66281
QTS, QuTS hero
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3397 build 20260206 and later
| CWE | CWE-476 |
| Vendor | qnap systems inc. |
| Product | qts |
| Published | Jun 10, 2026 |
Stay Ahead of the Next One
Get instant alerts for qnap systems inc. qts
Be the first to know when new unknown vulnerabilities affecting qnap systems inc. qts are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
QNAP Systems Inc. / QTS
5.2.0 < 5.2.9.3410 build 20260214
QNAP Systems Inc. / QuTS hero
h5.2.0 < h5.2.9.3410 build 20260214 h5.3.0 < h5.3.4.3500 build 20260520 ? < h6.0.0.3397 build 20260206
References
Credits
Bechir Bouali (@b3ch1r) from SecLab - TII