CVE-2023-33012

A command injection vulnerability in the configuration parser of the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versions 5.00 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands by using a crafted GRE configuration when the cloud management mode is enabled.

Affected products

Zyxel Atp Series, Zyxel Usg Flex 50(W) Series, Zyxel Usg Flex Series, Zyxel Usg20(W)-Vpn Series, Zyxel Vpn Series

Zyxel Usg 20w-vpn Firmware

< 5.37

Fix

Available

CVSS 3.1

8.8 HIGH

EPSS

9.9% (95th percentile)

Weakness

CWE-78

NVD status

Modified

Published

2023-07-17