CVE-2025-33040

MediumCVSS 6.5/10Last modified Oct 18, 2026

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

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-770

Affected software

Vendor	Product	Versions
QNAP Systems Inc.	Qsync Central	>= 4.x, < 5.0.0.1 ( 2025/07/09 )

References

https://www.qnap.com/en/security-advisory/qsa-25-34Vendor Advisory

Timeline

Published: Oct 3, 2025
Last modified: Oct 18, 2026
NVD status: Analyzed

Related CVEs from 2025

CVE-2025-330427.3Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Avro Java SDK when generating specific records from untrus CVE-2025-330436.1APTIOV contains a vulnerability in BIOS where an attacker may cause an Improper Input Validation locally. Successful exploitation of this vu CVE-2025-330447.8APTIOV contains a vulnerability in BIOS where an attacker may cause an Improper Restriction of Operations within the Bounds of a Memory Buff CVE-2025-330456.7APTIOV contains vulnerabilities in the BIOS where a privileged user may cause “Write-what-where Condition” and “Exposure of Sensitive Inform CVE-2025-33054.3A vulnerability has been found in 1902756969/code-projects IKUN_Library 1.0 and classified as problematic. This vulnerability affects the fu CVE-2025-330507.5Protection mechanism failure in Windows DHCP Server allows an unauthorized attacker to deny service over a network.CVE-2025-330517.5Exposure of sensitive information to an unauthorized actor in Microsoft Exchange Server allows an unauthorized attacker to disclose informat CVE-2025-330525.5Use of uninitialized resource in Windows DWM Core Library allows an authorized attacker to disclose information locally.CVE-2025-330538.8External control of file name or path in Internet Shortcut Files allows an unauthorized attacker to execute code over a network.CVE-2025-330548.1Insufficient UI warning of dangerous operations in Remote Desktop Client allows an unauthorized attacker to perform spoofing over a network.CVE-2025-330555.5Out-of-bounds read in Windows Storage Management Provider allows an authorized attacker to disclose information locally.CVE-2025-330567.5Improper access control in Microsoft Local Security Authority Server (lsasrv) allows an unauthorized attacker to deny service over a network