CVE-2026-26239 | QNAP File Station 5 5.5.6.5208 User Account stack-based overflow (qsa-26-37)

June 10, 2026 Yanac

A vulnerability marked as critical has been reported in QNAP File Station 5 5.5.6.5208. Affected by this vulnerability is an unknown functionality of the component User Account Handler. The manipulation leads to stack-based buffer overflow.

This vulnerability is listed as CVE-2026-26239. The attack may be initiated remotely. There is no available exploit.

It is suggested to upgrade the affected component.VulDB Recent EntriesRead More