Yokogawa FAST/TOOLS and CI Server

Summary

Vulnerabilities 1

• High 8.2
  CVE-2026-11833

  Overview: A vulnerability has been found in FAST/TOOLS and CI Server. The web server may return a response containing t…

  Yokogawa Electric FAST/TOOLS CI Server ICS / OT
  Jun 23, 2026

Revision history

1. 2026-06-25 #1

   Initial CISA Republication of Yokogawa Security Advisory Report YSAR-26-0004

References

• ICSA Advisory ICSA-26-176-01 - Web Version
  https://www.cisa.gov/news-events/ics-advisories/icsa-26-176-01
• Recommended Practices
  https://www.cisa.gov/uscert/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/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
• Recommended Practices
  https://www.cisa.gov/topics/industrial-control-systems
• Recommended Practices
  https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01
• 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/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b
• Recommended Practices
  https://www.cisa.gov/secure-our-world/teach-employees-avoid-phishing
• Recommended Practices
  https://www.cisa.gov/news-events/news/avoiding-social-engineering-and-phishing-attacks