CVE-2023-34139

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 17, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2023-34139: High severity, CVSS 8.8 | Vulnix