Siemens SCALANCE X-200RNA Switch Devices has an unspecified vulnerability

The SCALANCE X-204RNA Industrial Ethernet Access Point enables non-PRP endpoint devices to connect to a separate parallel network as needed.A security vulnerability exists in Siemens SCALANCE X-200RNA Switch Devices due to the web server of the affected device calculating session IDs and random numbers in an insecure manner, allowing an unauthenticated remote attacker to use the session ID and hijack an existing session.