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 version:
QuTS hero h5.3.2.3354 build 20251225 and later
Advisories

No advisories yet.

Fixes

Solution

We have already fixed the vulnerability in the following version: QuTS hero h5.3.2.3354 build 20251225 and later


Workaround

No workaround given by the vendor.

History

Wed, 11 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Qnap Systems
Qnap Systems quts Hero
Vendors & Products Qnap Systems
Qnap Systems quts Hero

Wed, 11 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 11 Feb 2026 12:45:00 +0000

Type Values Removed Values Added
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 version: QuTS hero h5.3.2.3354 build 20251225 and later
Title QuTS hero
Weaknesses CWE-476
References
Metrics cvssV4_0

{'score': 1.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: qnap

Published:

Updated: 2026-02-11T16:49:33.097Z

Reserved: 2025-11-26T09:25:37.832Z

Link: CVE-2025-66274

cve-icon Vulnrichment

Updated: 2026-02-11T16:49:30.495Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-11T13:15:58.243

Modified: 2026-02-11T15:27:26.370

Link: CVE-2025-66274

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-11T21:45:33Z

Weaknesses