CVE-2026-24722

Analyzed Analyzed - Analysis Complete

NULL Pointer Dereference in QNAP File Station DoS Vulnerability

Publication date: 2026-10-15

Last updated on: 2026-10-16

Assigner: QNAP Systems, Inc.

Description

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

CVSS Scores

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Meta Information

Published

2026-10-15

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-15

EPSS Evaluated

2026-10-18

NVD

CVE-2026-24722

EUVD

EUVD-2026-101877

Affected Vendors & Products

Vendor	Product	Version / Range
qnap	file_station	to 5.5.6.5243 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-476	The product dereferences a pointer that it expects to be valid but is NULL.

Attack-Flow Graph

Executive Summary

This is a NULL pointer dereference vulnerability in File Station 5. If an attacker gains a user account, they can exploit it to cause a denial-of-service (DoS) attack by crashing the application.

Detection Guidance

Detection involves checking the installed version of File Station 5. Compare your version against 5.5.6.5243 or later. If your version is older, the system is vulnerable. No specific commands are provided in the context.

Impact Analysis

An attacker with a user account could crash File Station 5, disrupting access to files and services. This could lead to downtime and loss of productivity.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR or HIPAA as it is a DoS vulnerability requiring user account access. However, a successful DoS attack could disrupt services, potentially impacting availability obligations under these regulations.

Mitigation Strategies

Update File Station 5 to version 5.5.6.5243 or later immediately. This version contains the fix for the NULL pointer dereference vulnerability. Ensure no unauthorized user accounts have access to exploit this issue.

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