NULL Pointer Dereference Vulnerability in QNAP Operating System
CVE-2025-48727

5.1MEDIUM

Key Information:

Vendor

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

What is CVE-2025-48727?

A NULL pointer dereference vulnerability has been identified in multiple versions of the QNAP Operating System. An unauthenticated remote attacker with administrator privileges could exploit this vulnerability to initiate a denial-of-service (DoS) attack, potentially disrupting service availability. It is crucial for users to update their systems to versions QTS 5.2.6.3195 build 20250715 or later, and QuTS hero h5.2.6.3195 build 20250715 or later to mitigate this risk. For more information, refer to the QNAP security advisory.

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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
.