CVE-2019-10633: Zyxel NAS326 Firmware

High severity, CVSS 8.8. EPSS: 3.2% chance of exploitation in the next 30 days.

An eval injection vulnerability in the Python web server routing on the Zyxel NAS 326 version 5.21 and below allows a remote authenticated attacker to execute arbitrary code via the tjp6jp6y4, simZysh, and ck6fup6 APIs.

Affected products

• Zyxel NAS326 Firmware: up to and including 5.21

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