Exploited
critical
9.8
CWE
22
Advisory Published
Updated

CVE-2024-11667: Zyxel Multiple Firewalls Path Traversal Vulnerability

First published: Wed Nov 27 2024(Updated: )

A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware versions V5.00 through V5.38, USG FLEX 50(W) series firmware versions V5.10 through V5.38, and USG20(W)-VPN series firmware versions V5.10 through V5.38 could allow an attacker to download or upload files via a crafted URL.

Credit: security@zyxel.com.tw security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
Zyxel Multiple Firewalls
All of
Zyxel ZLD Firmware>=5.00<=5.38
Any of
Zyxel Advanced Threat Protection (ATP)
Zyxel ATP100 Firmware
Zyxel ATP100W Firmware
Zyxel Zywall ATP200
Zyxel ATP500 Firmware
Zyxel ATP700 Firmware
Zyxel ATP series firmware
All of
Zyxel ZLD Firmware>=5.00<=5.38
Any of
Zyxel USG FLEX
Zyxel USG Flex 100 firmware
Zyxel USG FLEX 100ax firmware
Zyxel USG FLEX 100w firmware
Zyxel USG FLEX 200 firmware
Zyxel USG FLEX 50w
Zyxel USG FLEX 500 firmware
Zyxel USG FLEX 700 firmware
All of
Zyxel ZLD Firmware>=5.10<=5.38
Zyxel USG FLEX 50(W) series firmware
All of
Zyxel ZLD Firmware>=5.10<=5.38
Zyxel USG20

Remedy

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2024-11667?

    CVE-2024-11667 has been classified with a high severity due to its potential to allow unauthorized access through directory traversal.

  • How do I fix CVE-2024-11667?

    To fix CVE-2024-11667, update your Zyxel ATP or USG FLEX series device firmware to versions above 5.38.

  • Which products are affected by CVE-2024-11667?

    CVE-2024-11667 affects various Zyxel ATP series and USG FLEX series firmware versions from V5.00 to V5.38.

  • What could an attacker achieve by exploiting CVE-2024-11667?

    By exploiting CVE-2024-11667, an attacker could gain unauthorized access to the web management interface and manipulate server files.

  • Is CVE-2024-11667 still a threat to my device if updated?

    No, updating to the latest firmware mitigates the risk associated with CVE-2024-11667.

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