CVE-2023-34139

published 2023-07-17

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…

high 8.8 CVSS 3.1

AV A AC L PR N UI N S U C H I H A H

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

17 ranges

Vendor	Product	Version range	Fixed in
zyxel	usg_2200-vpn_firmware	>= 4.20 < 5.37	5.37
zyxel	usg_flex_100_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_100w_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_200_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_500_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_50_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_50w_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_700_firmware	>= 4.50 < 5.37	5.37
zyxel	usg_flex_series_firmware	—	—
zyxel	vpn_series_firmware	—	—
zyxel	zywall_vpn100_firmware	>= 4.20 < 5.37	5.37
zyxel	zywall_vpn2s_firmware	>= 4.20 < 5.37	5.37
zyxel	zywall_vpn300_firmware	>= 4.20 < 5.37	5.37
zyxel	zywall_vpn50_firmware	>= 4.20 < 5.37	5.37
zyxel	zywall_vpn_100_firmware	>= 4.20 < 5.37	5.37
zyxel	zywall_vpn_300_firmware	>= 4.20 < 5.37	5.37
zyxel	zywall_vpn_50_firmware	>= 4.20 < 5.37	5.37

CWE-78