Authentication Bypass Vulnerability in QNAP Operating Systems
CVE-2025-59385

8.1HIGH

Key Information:

Vendor

QNAP
Status
Qts
Quts Hero
Vendor
CVE Published:
16 December 2025

What is CVE-2025-59385?

A vulnerability has been identified in multiple QNAP operating system versions that allows remote attackers to bypass authentication mechanisms through spoofing. By exploiting this vulnerability, attackers can gain unauthorized access to resources that are typically protected by strict authentication protocols. QNAP has released updates to address this security issue and recommends users upgrade to the latest versions for enhanced protection.

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Deploy the Patch

Affected Version(s)

QTS 5.2.x < 5.2.7.3297 build 20251024

QuTS hero h5.2.x

QuTS hero h5.3.x

References

https://www.qnap.com/en/security-advisory/qsa-25-45

CVSS V4

Score:
8.1
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

Le Mau Anh Phong at Verichains Cyber Force
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