high
7.2
CWE
22
Advisory Published
Updated

CVE-2023-22914: Path Traversal

First published: Mon Apr 24 2023(Updated: )

A path traversal vulnerability in the “account_print.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker with administrator privileges to execute unauthorized OS commands in the “tmp” directory by uploading a crafted file if the hotspot function were enabled.

Credit: security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
Zyxel Usg Flex 100 Firmware>=4.50<=5.35
Zyxel Usg Flex 100
Zyxel Usg Flex 100w Firmware>=4.50<=5.35
Zyxel Usg Flex 100w
Zyxel Usg Flex 200 Firmware>=4.50<=5.35
Zyxel Usg Flex 200
Zyxel Usg Flex 50 Firmware>=4.50<=5.35
Zyxel Usg Flex 50
Zyxel Usg Flex 50w Firmware>=4.50<=5.35
Zyxel Usg Flex 50w
Zyxel Usg Flex 500 Firmware>=4.50<=5.35
Zyxel Usg Flex 500
Zyxel Usg Flex 700 Firmware>=4.50<=5.35
Zyxel Usg Flex 700
Zyxel Vpn100 Firmware>=4.50<=5.35
Zyxel Vpn100
Zyxel Multiple Network-Attached Storage (NAS) Devices>=4.50<=5.35
Zyxel Multiple Network-Attached Storage (NAS) Devices
Zyxel Vpn300 Firmware>=4.50<=5.35
Zyxel Vpn300
Zyxel Vpn50 Firmware>=4.50<=5.35
Zyxel Vpn50

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of the Zyxel USG FLEX series firmware?

    The vulnerability ID of the Zyxel USG FLEX series firmware is CVE-2023-22914.

  • What is the severity of CVE-2023-22914?

    The severity of CVE-2023-22914 is high with a CVSS score of 7.2.

  • Which Zyxel USG FLEX series firmware versions are affected by CVE-2023-22914?

    Zyxel USG FLEX series firmware versions 4.50 through 5.35 are affected by CVE-2023-22914.

  • How can a remote attacker exploit CVE-2023-22914?

    A remote authenticated attacker with administrator privileges can exploit CVE-2023-22914 to execute unauthorized OS commands.

  • What is the recommended action for fixing CVE-2023-22914?

    Update the affected Zyxel USG FLEX series firmware versions to a patched version provided by Zyxel.

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