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

Critical 9.3 Published Updated

A buffer overflow in the iSTAR Configuration Utility allows attackers to execute arbitrary code or cause denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-26382?

CVE-2025-26382 is a critical memory corruption vulnerability in Johnson Controls iSTAR Configuration Utility (ICU), published on 24 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-121

Which versions are affected by CVE-2025-26382?

How do I fix CVE-2025-26382?

No fix has been published for CVE-2025-26382 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-26382 being exploited?

There is no known exploitation of CVE-2025-26382 in the wild and no public exploit code.

Sources

Also known as GHSA-mqx7-237c-8fxx.

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