CVE-2023-4397 | Zyxel ATP/USG FLEX/USG FLEX 50/USG20-VPN 5.37 CLI Command buffer overflow

A vulnerability, which was classified as critical, has been found in Zyxel ATP, USG FLEX, USG FLEX 50 and USG20-VPN 5.37. This issue affects some unknown processing of the component CLI Command Handler. The manipulation leads to buffer overflow.

The identification of this vulnerability is CVE-2023-4397. Attacking locally is a requirement. There is no exploit available.