CVE Feed

    Dashboard / CVE / CVE-2022-0342

    CVE-2022-0342

    An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware versions V1.20 through V1.33 Patch 4, which could allow an attacker to bypass the web authentication and obtain administrative access of the device.

    Published:Mar 28, 2022
    Last Modified:Nov 21, 2024
    EPS:Mar 28, 2022
    EPSS Score:0.92291
    CVSS Score:9.8

    Affected Products

    Vendor
    Zyxel
    Product
    Atp100
    Vendor
    Zyxel
    Product
    Atp100 Firmware
    Vendor
    Zyxel
    Product
    Atp100w
    Vendor
    Zyxel
    Product
    Atp100w Firmware
    Vendor
    Zyxel
    Product
    Atp200
    Vendor
    Zyxel
    Product
    Atp200 Firmware
    Vendor
    Zyxel
    Product
    Atp500
    Vendor
    Zyxel
    Product
    Atp500 Firmware
    Vendor
    Zyxel
    Product
    Atp700
    Vendor
    Zyxel
    Product
    Atp700 Firmware
    Vendor
    Zyxel
    Product
    Atp800
    Vendor
    Zyxel
    Product
    Atp800 Firmware
    Vendor
    Zyxel
    Product
    Nsg300
    Vendor
    Zyxel
    Product
    Nsg300 Firmware
    Vendor
    Zyxel
    Product
    Usg40
    Vendor
    Zyxel
    Product
    Usg40 Firmware
    Vendor
    Zyxel
    Product
    Usg40w
    Vendor
    Zyxel
    Product
    Usg40w Firmware
    Vendor
    Zyxel
    Product
    Usg60
    Vendor
    Zyxel
    Product
    Usg60 Firmware
    Vendor
    Zyxel
    Product
    Usg60w
    Vendor
    Zyxel
    Product
    Usg60w Firmware
    Vendor
    Zyxel
    Product
    Usg Flex 100
    Vendor
    Zyxel
    Product
    Usg Flex 100 Firmware
    Vendor
    Zyxel
    Product
    Usg Flex 100w
    Vendor
    Zyxel
    Product
    Usg Flex 100w Firmware
    Vendor
    Zyxel
    Product
    Usg Flex 200
    Vendor
    Zyxel
    Product
    Usg Flex 200 Firmware
    Vendor
    Zyxel
    Product
    Usg Flex 500
    Vendor
    Zyxel
    Product
    Usg Flex 500 Firmware
    Vendor
    Zyxel
    Product
    Usg Flex 700
    Vendor
    Zyxel
    Product
    Usg Flex 700 Firmware
    Vendor
    Zyxel
    Product
    Vpn100
    Vendor
    Zyxel
    Product
    Vpn1000
    Vendor
    Zyxel
    Product
    Vpn1000 Firmware
    Vendor
    Zyxel
    Product
    Vpn100 Firmware
    Vendor
    Zyxel
    Product
    Vpn300
    Vendor
    Zyxel
    Product
    Vpn300 Firmware
    Vendor
    Zyxel
    Product
    Vpn50
    Vendor
    Zyxel
    Product
    Vpn50 Firmware
    Vendor
    Zyxel
    Product
    Zywall 110
    Vendor
    Zyxel
    Product
    Zywall 1100
    Vendor
    Zyxel
    Product
    Zywall 1100 Firmware
    Vendor
    Zyxel
    Product
    Zywall 110 Firmware
    Vendor
    Zyxel
    Product
    Zywall 310
    Vendor
    Zyxel
    Product
    Zywall 310 Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2025-9133 (CVSS 8.1) — A missing authorization vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.40, USG FLEX…
    CVE-2025-8078 (CVSS 7.2) — A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through…
    CVE-2024-11667 (CVSS 7.5) — A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.0…
    CVE-2024-42061 (CVSS 6.1) — A reflected cross-site scripting (XSS) vulnerability in the CGI program "dynamic_script.cgi" of Zyxel ATP seri…
    CVE-2024-42060 (CVSS 7.2) — A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.32 through…
    CVE-2024-42059 (CVSS 7.2) — A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V5.00 through…
    CVE-2024-42058 (CVSS 7.5) — A null pointer dereference vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.38, USG F…
    CVE-2024-42057 (CVSS 8.1) — A command injection vulnerability in the IPSec VPN feature of Zyxel ATP series firmware versions from V4.32 th…
    CVE-2024-7203 (CVSS 7.2) — A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.60 through…
    CVE-2024-6343 (CVSS 4.9) — A buffer overflow vulnerability in the CGI program of Zyxel ATP series firmware versions from V4.32 through V5…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High