Command Injection Vulnerability in QNAP Operating Systems
CVE-2025-66279

8.6HIGH

Key Information:

Vendor

QNAP
Status
Qts
Quts Hero
Vendor
CVE Published:
10 June 2026

What is CVE-2025-66279?

A command injection vulnerability has been identified in several versions of QNAP operating systems, enabling remote attackers with administrator access to execute arbitrary commands. This security flaw underscores the importance of applying the latest updates to safeguard sensitive data and overall system integrity. QNAP has resolved this issue in specific builds, urging users to upgrade to the patched versions to mitigate potential security risks.

Affected Version(s)

QTS 5.2.0 < 5.2.9.3410 build 20260214

QuTS hero h5.2.0

QuTS hero h5.3.0

References

https://www.qnap.com/en/security-advisory/qsa-26-10

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Bechir Bouali (@b3ch1r) from SecLab - TII
.