NULL Pointer Dereference in QNAP Operating Systems
CVE-2025-53590

1.2LOW

Key Information:

Vendor

QNAP
Status
Qts
Vendor
CVE Published:
2 January 2026

What is CVE-2025-53590?

A NULL pointer dereference vulnerability exists in multiple versions of the QNAP operating system, allowing remote attackers with admin access to execute a denial-of-service (DoS) attack. The issue affects users running versions before QTS 5.2.7.3256. It is crucial for users to update to the latest version to mitigate the risk of exploitation.

Affected Version(s)

QTS 5.2.x < 5.2.7.3256 build 20250913

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
.