NULL Pointer Dereference Vulnerability in QNAP Operating Systems
CVE-2025-52866

5.1MEDIUM

Key Information:

Vendor

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

What is CVE-2025-52866?

A NULL pointer dereference vulnerability has been identified in specific versions of QNAP operating systems. This issue allows remote attackers with administrative accounts to exploit the vulnerability, potentially leading to a denial-of-service (DoS) situation that can disrupt services. It is crucial for users to update to the patched versions: QTS 5.2.6.3195 build 20250715 and later, or QuTS hero h5.2.6.3195 build 20250715 and later, to mitigate the associated risks.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

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
.