AUGUST 4, 2026
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Case File

CVE-2023-34139

HIGH · CVSS 8.8 EPSS 0.76%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-07-17 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. See the original NVD description below for full technical details.

CVE
CVE-2023-34139
Severity
HIGH
CVSS
8.8
EPSS
0.76%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)