Is CVE-2023-34139 actively exploited?

CVE-2023-34139 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2023-34139?

CVE-2023-34139 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2023-34139?

Patch guidance is available from zyxel security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-34139.

Fix CVE-2023-34139 - HIGH zyxel usg 2200-vpn firmware

Q: Which products are affected by CVE-2023-34139?

15 products: zyxel usg 2200-vpn firmware, zyxel usg flex 100 firmware, zyxel usg flex 100w firmware, zyxel usg flex 200 firmware, zyxel usg flex 50 firmware, and 10 more.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: adjacent network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-78 · OS Command Injection CWE-78 · OS Command Injection

Metadata

Primary Vendor: ZYXEL
Published: 7/17/2023
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

zyxel : usg_2200-vpn_firmwarezyxel : usg_flex_100_firmwarezyxel : usg_flex_100w_firmwarezyxel : usg_flex_200_firmwarezyxel : usg_flex_50_firmwarezyxel : usg_flex_500_firmwarezyxel : usg_flex_50w_firmwarezyxel : usg_flex_700_firmwarezyxel : zywall_vpn100_firmwarezyxel : zywall_vpn2s_firmwarezyxel : zywall_vpn300_firmwarezyxel : zywall_vpn50_firmwarezyxel : zywall_vpn_100_firmwarezyxel : zywall_vpn_300_firmwarezyxel : zywall_vpn_50_firmware

Remediation Guidance

Executive Summary

View on NIST NVD