Denial-of-Service Vulnerability in QNAP Operating Systems
CVE-2025-52431

1.2LOW

Key Information:

Vendor

QNAP
Status
Qts
Quts Hero
Vendor
CVE Published:
2 January 2026

What is CVE-2025-52431?

A NULL pointer dereference vulnerability affects multiple versions of the QNAP operating system, potentially allowing remote attackers with administrative access to execute a denial-of-service (DoS) attack. This vulnerability can lead to service disruption, making it critical for users to ensure their systems are updated to the patched versions.

Affected Version(s)

QTS 5.2.x < 5.2.7.3256 build 20250913

QuTS hero h5.2.x

QuTS hero h5.3.x

References

https://www.qnap.com/en/security-advisory/qsa-25-50

CVSS V4

Score:
1.2
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

coral
.