CVE-2025-52867: QNAP Qsync Central

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

An uncontrolled resource consumption 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 5.0.0.2 ( 2025/07/31 ) and later

Affected products

• QNAP Qsync Central: from 5.0.0.0, before 5.0.0.2 (fixed in 5.0.0.2)

Published 2025-10-03. Last modified 2026-06-17.