CVE-2025-30275: QNAP Qsync Central

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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 4.5.0.7 ( 2025/04/23 ) and later

Affected products

• QNAP Qsync Central: from 4.5.0.3, before 4.5.0.7 (fixed in 4.5.0.7)

Published 2025-08-29. Last modified 2026-06-17.