NetSight
high8.8

CVE-2023-34139

A command injection vulnerability in the Free Time WiFi hotspot feature of the Zyxel USG FLEX series firmware versions 4.50 through 5.36 Patch 2 and VPN series…

Impact

A command injection vulnerability in the Free Time WiFi hotspot feature of the Zyxel USG FLEX series firmware versions 4.50 through 5.36 Patch 2 and VPN series firmware versions 4.20 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands on an affected device.

Affected products

VendorProductAffected versions
ZyxelUsg 2200-Vpn Firmware
from 4.20 before 5.37
ZyxelUsg Flex 100 Firmware
from 4.50 before 5.37
ZyxelUsg Flex 100w Firmware
from 4.50 before 5.37
ZyxelUsg Flex 200 Firmware
from 4.50 before 5.37
ZyxelUsg Flex 50 Firmware
from 4.50 before 5.37
ZyxelUsg Flex 500 Firmware
from 4.50 before 5.37
ZyxelUsg Flex 50w Firmware
from 4.50 before 5.37
ZyxelUsg Flex 700 Firmware
from 4.50 before 5.37
ZyxelZywall Vpn100 Firmware
from 4.20 before 5.37
ZyxelZywall Vpn2s Firmware
from 4.20 before 5.37
ZyxelZywall Vpn300 Firmware
from 4.20 before 5.37
ZyxelZywall Vpn50 Firmware
from 4.20 before 5.37

Weakness classification

References