CVE-2025-66281
High · 7.2CVSS
7.2
EPSS
0.5%
Published
Jun 10, 2026
CISA due date
—
The record
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
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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