medium
6.1
CWE
79
Advisory Published
Updated

CVE-2022-0734: XSS

First published: Tue May 24 2022(Updated: )

A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.35 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.35 through 5.20, and VPN series firmware versions 4.35 through 5.20, that could allow an attacker to obtain some information stored in the user's browser, such as cookies or session tokens, via a malicious script.

Credit: security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
Zyxel VPN100>=4.35<=5.20
Zyxel VPN100 Firmware
Zyxel VPN1000 Firmware>=4.35<=5.20
Zyxel VPN1000 Firmware
Zyxel Zywall VPN 300 Firmware>=4.35<=5.20
Zyxel Zywall VPN300
Zyxel Zywall VPN 50 Firmware>=4.35<=5.20
Zyxel VPN50 Firmware
Zyxel ZyWall ATP100 Firmware>=4.35<=5.20
Zyxel ATP100 Firmware
Zyxel ATP100W Firmware>=4.35<=5.20
Zyxel ATP100W Firmware
Zyxel ATP200 firmware>=4.35<=5.20
Zyxel ATP200 firmware
Zyxel ATP500 Firmware>=4.35<=5.20
Zyxel ATP500 Firmware
Zyxel Zywall ATP700 Firmware>=4.35<=5.20
Zyxel ATP700 Firmware
Zyxel ATP800>=4.35<=5.20
Zyxel ATP800 Firmware
Zyxel USG 110 Firmware>=4.35<=4.70
Zyxel USG 110 Firmware
Zyxel USG1100 firmware>=4.35<=4.70
Zyxel USG 1100 firmware
Zyxel USG1900 Firmware>=4.35<=4.70
Zyxel USG1900
Zyxel USG 20W>=4.35<=4.70
Zyxel USG20
Zyxel USG 20w-VPN Firmware>=4.35<=4.70
Zyxel USG20
Zyxel USG2200-VPN Firmware>=4.35<=4.70
Zyxel USG2200-VPN Firmware
Zyxel ZyWALL USG 310 firmware>=4.35<=4.70
Zyxel USG 310 firmware
Zyxel USG40W Firmware>=4.35<=4.70
Zyxel USG40W
Zyxel USG40W Firmware>=4.35<=4.70
Zyxel USG40W
Zyxel USG60 Firmware>=4.35<=4.70
Zyxel USG60W
Zyxel USG60W Firmware>=4.35<=4.70
Zyxel USG 60w firmware
Zyxel USG Flex 100 firmware>=4.50<=5.20
Zyxel USG FLEX 100
Zyxel USG FLEX 100w firmware>=4.50<=5.20
Zyxel USG FLEX 100w firmware
Zyxel USG FLEX 200>=4.50<=5.20
Zyxel USG FLEX 200 firmware
Zyxel USG FLEX 500>=4.50<=5.20
Zyxel USG FLEX 500 firmware
Zyxel USG FLEX firmware>=4.50<=5.20
Zyxel USG FLEX 700 firmware
Zyxel USG200 Firmware>=4.35<=4.70
Zyxel USG200 Firmware
Zyxel USG20-VPN Firmware>=4.35<=4.70
Zyxel USG20 Firmware
Zyxel USG210 Firmware>=4.35<=4.70
Zyxel USG210 Firmware
Zyxel USG2200 Firmware>=4.35<=4.70
Zyxel USG2200-VPN
Zyxel USG300 Firmware>=4.35<=4.70
Zyxel USG300 Firmware
Zyxel USG 310 firmware>=4.35<=4.70
Zyxel USG 310

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2022-0734?

    CVE-2022-0734 has been classified as a high severity cross-site scripting vulnerability.

  • How do I fix CVE-2022-0734?

    To fix CVE-2022-0734, you should update your Zyxel firmware to the latest version that addresses this vulnerability.

  • What versions of Zyxel firmware are affected by CVE-2022-0734?

    CVE-2022-0734 affects Zyxel USG/ZyWALL firmware versions 4.35 to 4.70, USG FLEX versions 4.50 to 5.20, ATP firmware versions 4.35 to 5.20, and VPN firmware versions 4.35 to 5.20.

  • Is CVE-2022-0734 a remote exploit?

    Yes, CVE-2022-0734 can potentially be exploited remotely via malicious web pages.

  • What devices are impacted by CVE-2022-0734 specifically?

    Devices impacted by CVE-2022-0734 include Zyxel VPN, USG, ATP, and ZYWALL series products running the mentioned firmware versions.

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