NULL Pointer Dereference Vulnerability in Qsync Central by QNAP
CVE-2025-47209

1.3LOW

Key Information:

Vendor

QNAP
Status
Qsync Central
Vendor
CVE Published:
11 February 2026

What is CVE-2025-47209?

A NULL pointer dereference vulnerability has been identified in Qsync Central, where a remote attacker can exploit it after gaining user account access. This exploitation can lead to a denial-of-service (DoS) attack, disrupting service availability. A patch has been implemented in Qsync Central version 5.0.0.4, released on January 20, 2026, addressing this issue.

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:
1.3
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

coral
.