Johnson Controls iSTAR Ultra, iSTAR Ultra SE, iSTAR Ultra G2, iSTAR Ultra G2 SE, iSTAR Edge G2 (Update A)

Summary

Vulnerabilities 2

• Critical 9.4
  CVE-2025-53695

  OS Command Injection in iSTAR Ultra products web application allows an authenticated attacker to gain even more privile…

  Johnson Controls iSTAR Ultra
  Jul 28, 2025
• Critical 9.3
  CVE-2025-53696

  iSTAR Ultra performs a firmware verification on boot, however the verification does not inspect certain portions of the…

  Johnson Controls iSTAR Ultra
  Jul 28, 2025

Revision history

1. 2025-12-16 #2

   Update A - Added version 6.9.8 as a mitigation.

2. 2025-08-12 #1

   Initial Publication

References

• ICSA Advisory ICSA-25-224-02 - Web Version
  https://www.cisa.gov/news-events/ics-advisories/icsa-25-224-02
• 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