HomeTech NewsSecurity Updates: Root Vulnerability Threatens Zyxel Firewalls

Security Updates: Root Vulnerability Threatens Zyxel Firewalls

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Several Zyxel firewall models are vulnerable to security vulnerabilities.

Attackers could target vulnerabilities in Zyxel firewalls and, in the worst case, execute their own commands with root privileges. Security updates are available.

The root vulnerability (CVE-2022-30526) has a threat level of “high“ classified. Local attackers could use the CLI command component here. By successfully exploiting the second vulnerability (CVe-2022-2030 “medium’) attackers could gain unauthorized access to files.

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According to an alert, the following series are vulnerable:

  • ATP series
  • USG FLEX 50(W) / USG20(W) VPN
  • USG FLEX 100(W), 200, 500, 700
  • VPN Series

Against the attacks is the version ZLD V5.31 secured. If you use the USG/ZyWALL series, you must use the secured firmware release ZLD V4.72 get it from support.

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