CVE-2025-26383 Information disclosure in iSTAR Configuration Utility (ICU)

Medium 6.3 Published Updated

The iSTAR Configuration Utility leaks memory, potentially exposing unauthorized data from the host Windows PC to attackers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-26383?

CVE-2025-26383 is a medium-severity vulnerability in Johnson Controls iSTAR Configuration Utility (ICU), published on 11 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The iSTAR Configuration Utility (ICU) tool leaks memory, which could result in the unintended exposure of unauthorized data from the Windows PC that ICU is running on.

Weakness: CWE-457

Which versions are affected by CVE-2025-26383?

How do I fix CVE-2025-26383?

No fix has been published for CVE-2025-26383 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-26383 being exploited?

There is no known exploitation of CVE-2025-26383 in the wild and no public exploit code.

Sources

Also known as GHSA-h6x7-66p5-f6g7.

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