Schneider Electric Saitel DR & Saitel DP Remote Terminal Unit

Risk Summary

Successful exploitation of these vulnerabilities could enable an attacker to execute arbitrary shell commands on the affected devices.

CVEs (2)

Remediations

• Schneider Electric has identified the following specific workarounds and mitigations users can apply to reduce risk:
• Schneider Electric Saitel DR RTU Versions 11.06.29 and prior: HUe Firmware version 11.06.30 of Saitel DR includes a fix for this vulnerability and is available for download. A reboot is necessary to complete the firmware upgrade.
• Schneider Electric Saitel DP RTU Versions 11.06.33 and prior: Firmware SM_CPU866e version 11.06.34 of Saitel DP includes a fix for this vulnerability and is available for download. A reboot is necessary to complete the firmware upgrade.
• Schneider Electric recommends that customers use appropriate patching methodologies when applying these patches to their systems. They strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure. Contact Schneider Electric's Customer Care Center for assistance removing a patch.
• If customers are not able to apply these patches, Schneider Electric recommends immediately applying the following mitigations to reduce the risk of exploitation:
• Restrict access to BLMon by assigning permissions only to a limited set of user roles.
• Ensure users are assigned the least privileged role that still allows them to perform their designated tasks.
• Implement firewall rules to restrict SSH connections to the device.
• 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 the associated Schneider Electric CPCERT security advisory SEVD-2025-252-02 Saitel DR & Saitel DP Remote Terminal Unit - SEVD-2025-252-02 PDF Version, Saitel DR & Saitel DP Remote Terminal Unit - SEVD-2025-252-02 CSAF Version.

Affected Vendors

Affected Products (2)

Affected Sectors

Commercial Facilities, Critical Manufacturing, Energy