The latest firmware update for SCALANCE XB-200, XC-200, XP-200, XF-200BA and XR-300WG, Firmware V4.7, implements security fixes and improvements.

Security Fixes and Improvements:

• This version contains security-relevant product improvements which increase the robustness. Upgrading to this version is recommended.
• Please subscribe to the Siemens Security Advisories on: https://www.siemens.com/global/en/products/services/cert.html

Features

• Topology change notices for STP/RSTP environments now include critical port and MAC address details for enhanced troubleshooting.
• RADIUS user logins and test authentication now send NAS-ID
• RADIUS now supports TLS encryption
• CMP Client functionality is integrated for secure certificate management and renewal
• DHCP server now offers BOOTP client support
• Certificate expiration monitoring now provides proactive alerts
• C-PLUG can now be activated / deactivated

IEC 62443-4-2 SL2 Requirements

• FW V4.7 lays the essential groundwork for an advanced cybersecurity feature: integrity of the boot process. This capability, vital for meeting IEC 62443-4-2 CR 3.14 + RE1 (Integrity of the Boot Process), will be activated exclusively at the factory at a later date for future product deployments, providing additional protection for devices. More details on the activation timeline and important considerations will be made available in early 2026.
• For a summary of all other fulfilled IEC 62443-4-2 requirements, please refer to the Declaration of Conformity for SCALANCE X devices: 109977121

The following functions/improvements were implemented:

• Support of additional SFPs
  • B-SFP991-1               6GK5991-1AD01-8AA0
  • B-SFP991-1LD          6GK5991-1AF01-8AA0
  • B-SFP992-1               6GK5992-1AL01-8AA0
  • B-SFP992-1LD          6GK5992-1AM01-8AA0
  • B-SFP993-1LD          6GK5993-1AU01-8AA0