CVE-2025-52869

A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and later

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

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

12 Feb 2026, 13:33

Type	Values Removed	Values Added
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
First Time		Qnap qsync Central Qnap
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.1

11 Feb 2026, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-11 13:15

Updated : 2026-02-12 13:33

NVD link : CVE-2025-52869

Mitre link : CVE-2025-52869

CVE.ORG link : CVE-2025-52869

JSON object : View

Products Affected

qnap

qsync_central

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-122

Heap-based Buffer Overflow

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