Information disclosure in Johnson Controls iSTAR Configuration Utility (ICU) Tool



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-26383
CWE-ID CWE-457
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 iSTAR Configuration Utility (ICU)
Hardware solutions / Firmware

Vendor Johnson Controls

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Use of Uninitialized Variable

EUVDB-ID: #VU109886

Risk: Medium

CVSSv4.0: 2.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-26383

CWE-ID: CWE-457 - Use of Uninitialized Variable

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to use of uninitialized variable. A remote attacker on the local network can gain unauthorized access to sensitive information on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

iSTAR Configuration Utility (ICU): before 6.9.5

CPE2.3 External links

https://www.cisa.gov/news-events/ics-advisories/icsa-25-146-01


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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