Predictable Seed Vulnerability in Click Plus PLC Firmware by AutomationDirect

CVE-2025-55069

What is CVE-2025-55069?

A vulnerability has been identified in the Click Plus PLC firmware version 3.60, where the pseudo-random number generator utilizes a predictable seed. This flaw undermines the generation of private keys, posing significant security risks. Attackers can exploit this behavior to gain unauthorized access or manipulate systems relying on these compromised keys. It is crucial for users and administrators to remain vigilant and update to more secure firmware versions as they become available.

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