Summary: Zyxel has issued a warning regarding a faulty security signature update that is causing critical errors in USG FLEX and ATP Series firewalls, including boot loops and login issues. The update, which was pushed out between January 24 and 25, has led to various operational failures, necessitating physical access for recovery. Zyxel has provided detailed recovery steps and is offering support sessions for affected customers.
Threat Actor: N/A | N/A
Victim: Zyxel | Zyxel
Keypoints :
- Faulty Application Signature Update causing reboot loops and login access problems.
- Only USG FLEX and ATP Series firewalls with active security licenses are affected.
- Physical access to the device is required for recovery, involving a series of restoration steps.