CVE-2025-0327 Schneider Electric CVE debrief

Who should care

OT/ICS defenders, Schneider Electric EcoStruxure Process Expert operators, engineering workstation administrators, and teams responsible for Windows service hardening and application control in industrial environments.

Technical summary

The advisory describes CWE-269 improper privilege management affecting two Windows services: one that manages audit trail data and one that acts as a server for client requests. The attack requires local standard-user privileges and service restart to take effect. CISA lists affected products as EcoStruxure™ Process Expert 2020 R2, 2021, and 2023 versions prior to v4.8.0.5715, plus the AVEVA System Platform variants identified in the advisory. Schneider Electric states that v4.8.0.5715 includes a fix for EcoStruxure™ Process Expert 2023 and that mitigation guidance includes restricting execute permission for sc.exe/service-control utilities to administrators and using application control/whitelisting.

Defensive priority

High priority for any site running affected EcoStruxure Process Expert deployments, especially where standard users have access to engineering workstations or service configuration utilities.

Recommended defensive actions

• Verify whether any engineering workstation is running an affected EcoStruxure™ Process Expert release or an affected AVEVA System variant named in the advisory.
• Apply Schneider Electric's fixed release for EcoStruxure™ Process Expert 2023 (v4.8.0.5715) where applicable; follow vendor guidance to uninstall the prior 2023 version before installing the fixed package.
• Restrict execution and use of Windows service configuration utilities such as sc.exe to administrative users only.
• Use application control/whitelisting controls such as McAfee Application and Change Control as recommended by Schneider Electric.
• Review and harden Windows service permissions and startup paths on impacted engineering workstations.
• Monitor for unauthorized changes to service executable paths and unexpected service restarts on affected hosts.

Evidence notes

All claims are sourced from the supplied CISA CSAF advisory for ICSA-25-079-01 / CVE-2025-0327 and the referenced Schneider Electric security notice. The advisory explicitly states the local privilege prerequisite, the service-path modification condition, the need for service restart, the impacted product families/versions, and the vendor mitigation and fixed release information.

Official resources