NULL Pointer Dereference Vulnerability in QNAP Operating Systems
CVE-2025-52854

5.1MEDIUM

Key Information:

Vendor

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

What is CVE-2025-52854?

A vulnerability in QNAP operating systems allows for a NULL pointer dereference, which can be exploited by a remote attacker with administrator access. This exploitation can lead to a denial-of-service (DoS) attack, impacting the availability of the affected systems. Users are advised to update to QTS 5.2.6.3195 build 20250715 or later, and QuTS hero h5.2.6.3195 build 20250715 or later to mitigate this risk.

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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
.