CVE-2019-10634: Zyxel NAS326 Firmware

Medium severity, CVSS 5.4. EPSS: 0.8% chance of exploitation in the next 30 days.

An XSS vulnerability in the Zyxel NAS 326 version 5.21 and below allows a remote authenticated attacker to inject arbitrary JavaScript or HTML via the user, group, and file-share description fields.

Affected products

• Zyxel NAS326 Firmware: up to and including 5.21

Published 2019-04-09. Last modified 2026-06-17.