CVE-2025-54148

Analyzed Analyzed - Analysis Complete

NULL Pointer Dereference in Qsync Central Enables Remote DoS

Publication date: 2026-02-11

Last updated on: 2026-02-12

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 5.0.0.4 ( 2026/01/20 ) and later

CVSS Scores

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Meta Information

Published

2026-02-11

Last Modified

2026-02-12

Generated

2026-07-06

AI Q&A

2026-02-11

EPSS Evaluated

2026-07-05

NVD

CVE-2025-54148

Affected Vendors & Products

Vendor	Product	Version / Range
qnap	qsync_central	From 5.0.0.0 (inc) to 5.0.0.4 (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 issue affecting Qsync Central. It occurs when a remote attacker who has gained access to a user account exploits the flaw to cause the software to crash or become unresponsive.

Essentially, the attacker can trigger a denial-of-service (DoS) condition by exploiting this vulnerability.

Impact Analysis

If exploited, this vulnerability allows an attacker with a user account to launch a denial-of-service (DoS) attack against Qsync Central, causing the service to crash or become unavailable.

This can disrupt normal operations and potentially impact availability of services relying on Qsync Central.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, you should upgrade Qsync Central to version 5.0.0.4 or later, where the issue has been fixed.

Additionally, ensure that user accounts are secured to prevent unauthorized remote access, as exploitation requires a remote attacker to have a user account.

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