CVE-2023-34139

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.22%
Vendor Advisory zyxel.com
Affected: Zyxel USG FLEX series firmware
Affected: Zyxel VPN series firmware
Published at:
Updated at:

References

Link Tags
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-wlan-controllers vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-34139?
CVE-2023-34139 has been scored as a high severity vulnerability.
How to fix CVE-2023-34139?
To fix CVE-2023-34139, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-34139 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-34139 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-34139?
CVE-2023-34139 affects Zyxel USG FLEX series firmware, Zyxel VPN series firmware.
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