CVE-2023-28771: Zyxel Multiple Firewalls OS Command Injection Vulnerability
Zyxel ATP, USG FLEX, VPN, and ZyWALL/USG firewalls allow for improper error message handling which could allow an unauthenticated attacker to execute OS commands remotely by sending crafted packets to an affected device. Required action: Apply updates per vendor instructions.
CISA KEV ↗ · unattributed attribution