Zyxel Firewall Security Service Incident 2025-10-20 06:49 ~ 10:47 (UTC+0)

Dear Zyxel firewall users,

The Zyxel firewall security services had some issues due to an incident from AWS.

Issue Started from:

2025-10-20 06:49 (UTC+0)

Resolved:

2025-10-20 10:47 (UTC+0)

Issue Symptom & Risk:

These functions are effected:

• Firmware upgrade
• Signature upgrade
• Cloud query
• Sandbox
• Threat Intelligence service
• Device Insight service
• SecuPilot in SecuReporter

Note: This incident does not affect the firewall and the local network services.

If you observe any issues that do not match the symptoms & risks mentioned above, please contact @Zyxel_CSO

We apologize for any inconvenience this has caused.
Zyxel Nebula Support