CVE-2023-33009
Zyxel Multiple Firewalls Buffer Overflow Vulnerability
Zyxel ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, VPN, and ZyWALL/USG firewalls contain a buffer overflow vulnerability in the notification function that could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and remote code execution on an affected device. Vendor/Product: Zyxel Multiple Firewalls. Added to CISA KEV 2023-06-05; required action: Apply updates per vendor instructions.