Schneider Electric Web Designer for Modicon

Risk Summary

Successful exploitation of this vulnerability could result in information disclosure, workstation integrity and potential remote code execution on the compromised computer.

CVEs (1)

Remediations

• Web Designer tool project file is based on XML language with specific parameters. To ensure the integrity of this file please follow the recommendations below:
• Encrypt project file (XML configuration file) when stored and restrict the access to only trusted users.
• When exchanging files over the network, use secure communication protocols.
• Only open project files received from a trusted source.
• Compute a hash of the project files and regularly check the consistency of this hash to verify the integrity before usage.
• To ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric's security notification service here: https://www.se.com/ww/en/work/support/cybersecurity/security-notifications.jsp
• Schneider Electric strongly recommends the following industry cybersecurity best practices.
• Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.
• Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks.
• Place all controllers in locked cabinets and never leave them in the "Program" mode.
• Never connect programming software to any network other than the network intended for that device.
• Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks.
• Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation.
• Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.
• When remote access is required, use secure methods, such as virtual private networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.
• For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.
• For more information, see Schneider Electric security notification "SEVD-2025-014-04 Web Server on Modicon M340 and BMXNOE0100/0110, BMXNOR0200H communication modules"

Affected Vendors

Affected Products (4)

Affected Sectors

Commercial Facilities, Energy, Food and Agriculture, Government Facilities, Transportation Systems, Water and Wastewater Systems