NULL Pointer Dereference Vulnerability in QNAP Operating Systems
CVE-2025-52433

5.1MEDIUM

Key Information:

Vendor

QNAP

Vendor
CVE Published:
3 October 2025

What is CVE-2025-52433?

A NULL pointer dereference vulnerability has been identified in several versions of QNAP's operating system. This flaw can allow a remote attacker with administrator access to exploit the vulnerability effectively, potentially leading to a denial-of-service (DoS) attack. Users are strongly advised to upgrade to the fixed versions: QTS 5.2.6.3195 build 20250715 and later, or QuTS hero h5.2.6.3195 build 20250715 and later to mitigate this risk.

Affected Version(s)

QTS 5.2.x < 5.2.6.3195 build 20250715

QuTS hero h5.2.x

References

CVSS V4

Score:
5.1
Severity:
MEDIUM
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
.