Exploited
critical
10
CWE
77 78
Advisory Published
Updated

CVE-2022-30525: Zyxel Multiple Firewalls OS Command Injection Vulnerability

First published: Thu May 12 2022(Updated: )

A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.

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

Affected SoftwareAffected VersionHow to fix
Zyxel Multiple Firewalls
All of
>=5.00<5.30
All of
>=5.00<5.30
All of
>=5.00<=5.30
All of
>=5.00<5.30
All of
>=4.60<5.30
All of
>=4.60<5.30
All of
>=4.60<5.30
All of
>=4.60<5.30
All of
>=5.10<5.30
All of
>=5.10<5.30
All of
>=5.10<5.30
All of
>=5.10<5.30
All of
>=5.10<5.30
All of
>=5.10<5.30
All of
>=5.10<5.30
All of
>=5.10<5.30
All of
Zyxel USG FLEX 100w firmware>=5.00<5.30
Zyxel USG FLEX 100w firmware
All of
Zyxel USG Flex 200HP Firmware>=5.00<5.30
Zyxel USG FLEX 200 firmware
All of
Zyxel USG FLEX 500>=5.00<=5.30
Zyxel USG FLEX 500 firmware
All of
Zyxel USG FLEX firmware>=5.00<5.30
Zyxel USG FLEX 700 firmware
All of
Zyxel VPN100>=4.60<5.30
Zyxel Zywall VPN100
All of
Zyxel VPN1000 Firmware>=4.60<5.30
Zyxel VPN1000 Firmware
All of
Zyxel Zywall VPN 300 Firmware>=4.60<5.30
Zyxel Zywall VPN300
All of
Zyxel Zywall VPN 50 Firmware>=4.60<5.30
Zyxel VPN50 Firmware
All of
Zyxel ZyWall ATP100 Firmware>=5.10<5.30
Zyxel ATP100 Firmware
All of
Zyxel ATP100W Firmware>=5.10<5.30
Zyxel ATP100W Firmware
All of
Zyxel ATP200 firmware>=5.10<5.30
Zyxel Zywall ATP200
All of
Zyxel ATP500 Firmware>=5.10<5.30
Zyxel ATP500 Firmware
All of
Zyxel Zywall ATP700>=5.10<5.30
Zyxel ATP700 Firmware
All of
Zyxel Zywall ATP800 Firmware>=5.10<5.30
Zyxel ATP series firmware
All of
Zyxel USG FLEX 50w>=5.10<5.30
Zyxel USG FLEX 50(W) series firmware
All of
Zyxel USG 20W-VPN Firmware>=5.10<5.30
Zyxel USG20W-VPN Firmware
Zyxel USG FLEX 100w firmware>=5.00<5.30
Zyxel USG FLEX 100w firmware
Zyxel USG Flex 200HP Firmware>=5.00<5.30
Zyxel USG FLEX 200 firmware
Zyxel USG FLEX 500>=5.00<=5.30
Zyxel USG FLEX 500 firmware
Zyxel USG FLEX firmware>=5.00<5.30
Zyxel USG FLEX 700 firmware
Zyxel VPN100>=4.60<5.30
Zyxel Zywall VPN100
Zyxel VPN1000 Firmware>=4.60<5.30
Zyxel VPN1000 Firmware
Zyxel Zywall VPN 300 Firmware>=4.60<5.30
Zyxel Zywall VPN300
Zyxel Zywall VPN 50 Firmware>=4.60<5.30
Zyxel VPN50 Firmware
Zyxel ZyWall ATP100 Firmware>=5.10<5.30
Zyxel ATP100 Firmware
Zyxel ATP100W Firmware>=5.10<5.30
Zyxel ATP100W Firmware
Zyxel ATP200 firmware>=5.10<5.30
Zyxel Zywall ATP200
Zyxel ATP500 Firmware>=5.10<5.30
Zyxel ATP500 Firmware
Zyxel Zywall ATP700>=5.10<5.30
Zyxel ATP700 Firmware
Zyxel Zywall ATP800 Firmware>=5.10<5.30
Zyxel ATP series firmware
Zyxel USG FLEX 50w>=5.10<5.30
Zyxel USG FLEX 50(W) series firmware
Zyxel USG 20W-VPN Firmware>=5.10<5.30
Zyxel USG20W-VPN Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2022-30525?

    The severity of CVE-2022-30525 is critical with a CVSS score of 9.8.

  • How does CVE-2022-30525 affect Zyxel Multiple Firewalls?

    CVE-2022-30525 affects Zyxel Multiple Firewalls by allowing OS command injection.

  • Which Zyxel firewalls are affected by CVE-2022-30525?

    Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1 are affected by CVE-2022-30525.

  • How do I fix CVE-2022-30525?

    To fix CVE-2022-30525, users should update their Zyxel firewalls to firmware versions 5.21 Patch 2 or higher.

  • Where can I find more information about CVE-2022-30525?

    More information about CVE-2022-30525 can be found at the following references: <ul><li><a href='http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html'>Packet Storm Security</a></li><li><a href='http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html'>Packet Storm Security</a></li><li><a href='http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html'>Packet Storm Security</a></li></ul>

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