Buffer Overflow Vulnerability in Qsync Central by QNAP
CVE-2025-52870

0.6LOW

Key Information:

Vendor

QNAP
Status
Qsync Central
Vendor
CVE Published:
11 February 2026

What is CVE-2025-52870?

A buffer overflow vulnerability has been identified in Qsync Central allowing a remote attacker, who has gained a user account, to exploit the flaw. This exploitation can lead to memory modification or result in process crashes. It is crucial to update to Qsync Central version 5.0.0.4 or later to mitigate this risk.

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:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Searat and izut
.