---
id: CVE-2026-24723
title: >-
  A NULL pointer dereference vulnerability has been reported to affect File
  Station 5
summary: >-
  A NULL pointer dereference vulnerability has been reported to affect File
  Station 5. If a remote attacker gains a user account, they can then exploit
  the vulnerability to launch a denial-of-service (DoS) attack.


  We have already fixed th…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'
cwe:
  - CWE-476
vendor: QNAP Systems Inc.
product: File Station 5
affected:
  - file_station_5 >= 5.5.x < 5.5.6.5243
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T08:16:37.790'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-24723'
references:
  - url: >-
      https://www.qnap.com/en/app-release-notes?keyword=FileStation5&app=FileStation5&product-line=nas
    label: security@qnapsecurity.com.tw
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-15T07:57:27.849Z'
---

## Overview

A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.

We have already fixed the vulnerability in the following version:
File Station 5 5.5.6.5243 and later

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.