NULL Pointer Dereference in Qsync Central by QNAP
CVE-2025-53598

0.6LOW

Key Information:

Vendor

QNAP
Status
Qsync Central
Vendor
CVE Published:
11 February 2026

What is CVE-2025-53598?

A NULL pointer dereference vulnerability has been identified in Qsync Central, which can be exploited by remote attackers. If an attacker gains access to a user account, they may leverage this vulnerability to execute a denial-of-service (DoS) attack, causing significant disruption to users. This issue has been addressed in Qsync Central version 5.0.0.4 and later, ensuring enhanced security for users.

Affected Version(s)

Qsync Central 5.0.x.x < 5.0.0.4 ( 2026/01/20 )

References

https://www.qnap.com/en/security-advisory/qsa-26-02

CVSS V4

Score:
0.6
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

coral
.