CVE-2025-33039

Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-10-03

Last updated on: 2025-10-07

Assigner: QNAP Systems, Inc.

Description

An allocation of resources without limits or throttling vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.1 ( 2025/07/09 ) and later

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-03

Last Modified

2025-10-07

Generated

2026-07-06

AI Q&A

2025-10-03

EPSS Evaluated

2026-07-05

NVD

CVE-2025-33039

EUVD

EUVD-2025-32086

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-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

This vulnerability is an allocation of resources without limits or throttling in Qsync Central. If a remote attacker gains access to a user account, they can exploit this flaw to consume resources excessively, preventing other systems, applications, or processes from accessing the same type of resource.

Impact Analysis

The vulnerability can lead to denial of service conditions by allowing an attacker to exhaust resources, which prevents legitimate systems, applications, or processes from functioning properly or accessing necessary resources.

Mitigation Strategies

To mitigate this vulnerability, immediately update Qsync Central to version 5.0.0.1 (released on 2025/07/09) or later, as the vulnerability has been fixed in these versions.

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