NULL Pointer Dereference Vulnerability in QNAP File Station
CVE-2025-47207

5.3MEDIUM

Key Information:

Vendor

QNAP
Status
File Station 5
Vendor
CVE Published:
7 November 2025

What is CVE-2025-47207?

A NULL pointer dereference vulnerability has been identified in multiple versions of QNAP File Station. This weakness allows remote attackers, who have obtained a valid user account, to exploit the flaw and potentially execute a denial-of-service (DoS) attack. To mitigate the risk, QNAP has released a fix in version 5.5.6.5018 and later. Users are strongly advised to update to the latest version to ensure the security of their systems.

Affected Version(s)

File Station 5 5.5.x < 5.5.6.5018

References

https://www.qnap.com/en/security-advisory/qsa-25-38

CVSS V4

Score:
5.3
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
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CVE-2025-47207 : NULL Pointer Dereference Vulnerability in QNAP File Station