What’s Vulnerable › Vulnerabilities

CVE-2025-26382: Johnson Controls Software House iSTAR Configuration Utility (ICU) Tool

• Severity: critical (CVSS 9.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-24 · updated 2026-06-17
• Weakness: CWE-121

Description

Under certain circumstances the iSTAR Configuration Utility (ICU) tool could have a buffer overflow issue

Affected products

• Johnson Controls iSTAR Configuration Utility (ICU): before 6.9.5 — fixed in 6.9.5

How to fix

Upgrade to a fixed version: Johnson Controls iSTAR Configuration Utility (ICU) 6.9.5. Check the vendor advisory for mitigations.

References

• https://www.cisa.gov/news-events/ics-advisories/icsa-25-114-05
• https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

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