NULL Pointer Dereference Vulnerability in QNAP Operating System
CVE-2025-52855

5.1MEDIUM

Key Information:

Vendor

QNAP
Status
Qts
Quts Hero
Vendor
CVE Published:
3 October 2025

What is CVE-2025-52855?

A vulnerability has been identified in several versions of the QNAP operating system, which may be exploited by attackers possessing remote administrator access. By leveraging this NULL pointer dereference flaw, the attacker could initiate a denial-of-service (DoS) condition, potentially impacting the system's availability and functionality. It is crucial for users to upgrade to the patched versions to mitigate the risks associated with this vulnerability.

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Deploy the Patch

Affected Version(s)

QTS 5.2.x < 5.2.6.3195 build 20250715

QuTS hero h5.2.x

References

https://www.qnap.com/en/security-advisory/qsa-25-36

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
JSON
.