Authentication Flaw in Siemens SINUMERIK Products

CVE-2025-40743

What is CVE-2025-40743?

A significant security vulnerability has been discovered in several versions of Siemens SINUMERIK products. This flaw, originating from improper validation of authentication credentials for the VNC access service, allows unauthorized users to access systems with inadequate password verification. As a result, attackers could potentially gain remote access, posing risks to system confidentiality, integrity, and availability. It is crucial for users to update to the latest software versions to mitigate this risk effectively.

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