Hackers have started to exploit a recently patched critical vulnerability, tracked as CVE-2022-30525, that affects Zyxel firewall and VPN devices for businesses.

Successful exploitation allows a remote attacker to inject arbitrary commands remotely without authentication, which can enable setting up a reverse shell.

Zyxel on May 12 released a security advisory for CVE-2022-30525 (9.8 critical severity score), announcing that a fix was released for the affected models and urging administrators to install the latest updates.

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