CVE-2025-44014: QNAP Qsync Central

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

An out-of-bounds write vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify or corrupt memory. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.1 ( 2025/07/09 ) and later

Affected products

• QNAP Qsync Central: from 4.2.0.0, before 5.0.0.1 (fixed in 5.0.0.1)

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