Summary
Schneider Electric is aware of a vulnerability disclosed by Microsoft in the Microsoft Windows Server Update
Services (WSUS) used in the EcoStruxure™ Foxboro DCS Advisor services.
The EcoStruxure™ Foxboro DCS Advisor, an optional component of the [EcoStruxure™ Foxboro DCS system](https://www.se.com/ww/en/work/products/industrial-automation-control/foxboro-dcs/),
facilitates remote connectivity and diagnostics by continuously monitoring key performance indicators (KPI) on
the I/A Series or Control Software system's process.
Failure to apply the remediations provided below may risk a potential remote code execution event, which
could result in system-level privileges acquired by unauthorized parties.
Vulnerabilities 1
-
Critical 9.8
Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
KEV Oct 24, 2025
Revision history
-
#2
Initial Republication of Schneider Electric CPCERT SEVD-2025-343-02 advisory
-
#1
Original Release
References
-
EcoStruxure™ Foxboro DCS Advisor - SEVD-2025-343-02 PDF Version
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2025-343-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2025-343-02.pdf
-
Recommended Cybersecurity Best Practices
https://www.se.com/us/en/download/document/7EN52-0390/
-
ICS Advisory ICSA-25-352-02 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-25-352-02
-
Recommended Practices
https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01
-
Recommended Practices
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
-
Recommended Practices
https://www.cisa.gov/topics/industrial-control-systems
-
Recommended Practices
https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
-
Recommended Practices
https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
-
Recommended Practices
https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b