A command injection 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 execute arbitrary commands.

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

Project Subscriptions

Vendors Products
Qnap Systems Inc. Subscribe
Advisories

No advisories yet.

Fixes

Solution

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


Workaround

No workaround given by the vendor.

History

Wed, 10 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 10 Jun 2026 05:15:00 +0000

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

Wed, 10 Jun 2026 03:45:00 +0000

Type Values Removed Values Added
Description A command injection 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 execute arbitrary commands. 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
Title QTS, QuTS hero
Weaknesses CWE-78
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: qnap

Published:

Updated: 2026-06-10T18:52:23.441Z

Reserved: 2025-11-26T09:25:37.833Z

Link: CVE-2025-66279

cve-icon Vulnrichment

Updated: 2026-06-10T18:52:19.438Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-10T04:17:12.190

Modified: 2026-06-10T19:43:28.857

Link: CVE-2025-66279

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-10T05:00:15Z

Weaknesses