BaseFortify

Publication date: 2025-10-03

Last updated on: 2025-10-08

Assigner: QNAP Systems, Inc.

Description

A NULL pointer dereference vulnerability has been reported to affect Qsync Central. 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: Qsync Central 5.0.0.1 ( 2025/07/09 ) and later

CVSS Scores

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Meta Information

Published

2025-10-03

Last Modified

2025-10-08

Generated

2026-07-07

AI Q&A

2025-10-03

EPSS Evaluated

2026-07-05

NVD

CVE-2025-44009

Affected Vendors & Products

Vendor	Product	Version / Range
qnap	qsync_central	From 4.2.0.0 (inc) to 5.0.0.1 (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 vulnerability is a NULL pointer dereference in Qsync Central. It can be exploited by a remote attacker who has gained a user account to cause a denial-of-service (DoS) attack, making the service unavailable.

Impact Analysis

If exploited, this vulnerability can cause a denial-of-service (DoS) attack, disrupting the availability of Qsync Central services and potentially impacting business operations that rely on it.

Mitigation Strategies

Upgrade Qsync Central to version 5.0.0.1 (released on 2025/07/09) or later to fix the vulnerability.

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