CVE-2025-53598

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.qnap.com/en/security-advisory/qsa-26-02	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:qnap:qsync_central:*:*:*:*:*:*:*:*

History

17 Jun 2026, 09:38

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad de desreferencia de puntero NULL ha sido reportada que afecta a Qsync Central. Si un atacante remoto obtiene una cuenta de usuario, puede entonces explotar la vulnerabilidad para lanzar un ataque de denegación de servicio (DoS). Ya hemos corregido la vulnerabilidad en la siguiente versión: Qsync Central 5.0.0.4 ( 2026/01/20 ) y posteriores

12 Feb 2026, 13:32

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
First Time		Qnap qsync Central Qnap
CPE		cpe:2.3:a:qnap:qsync_central::::::::
References	~~() https://www.qnap.com/en/security-advisory/qsa-26-02 -~~	() https://www.qnap.com/en/security-advisory/qsa-26-02 - Vendor Advisory

11 Feb 2026, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-11 13:15

Updated : 2026-06-17 09:38

NVD link : CVE-2025-53598

Mitre link : CVE-2025-53598

CVE.ORG link : CVE-2025-53598

JSON object : View

Products Affected

qnap

qsync_central

CWE

CWE-476

NULL Pointer Dereference

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