CVEvulnerability

CVE-2023-34139

8.8 HIGH Published 2023-07-17 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-07-17
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-78

Description

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 configurations

• zyxel usg 2200-vpn firmware (>= 4.20 < 5.37) • zyxel usg flex 100 firmware (>= 4.50 < 5.37) • zyxel usg flex 100w firmware (>= 4.50 < 5.37) • zyxel usg flex 200 firmware (>= 4.50 < 5.37) • zyxel usg flex 50 firmware (>= 4.50 < 5.37) • zyxel usg flex 500 firmware (>= 4.50 < 5.37) • zyxel usg flex 50w firmware (>= 4.50 < 5.37) • zyxel usg flex 700 firmware (>= 4.50 < 5.37) • zyxel zywall vpn100 firmware (>= 4.20 < 5.37) • zyxel zywall vpn2s firmware (>= 4.20 < 5.37) • zyxel zywall vpn300 firmware (>= 4.20 < 5.37) • zyxel zywall vpn50 firmware (>= 4.20 < 5.37) • zyxel zywall vpn 100 firmware (>= 4.20 < 5.37) • zyxel zywall vpn 300 firmware (>= 4.20 < 5.37) • zyxel zywall vpn 50 firmware (>= 4.20 < 5.37)

Related

Weakness · CWE (1)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References