CVE-2025-26386 HIGH

CVE-2025-26386: Stack-based Buffer Overflow in Johnson Controls iSTAR Configuration Utility (ICU) tool

Vendor Johnson Controls
Product iSTAR Configuration Utility (ICU)
Weakness CWE-121
Published January 28, 2026
Last update January 28, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Johnson Controls iSTAR Configuration Utility (ICU) has Stack-based Buffer Overflow vulnerability. This issue affects iSTAR Configuration Utility (ICU) version 6.9.7 and prior. Successful exploitation of this vulnerability could result in failure within the operating system of the machine hosting the ICU tool.

Key dates

02Disclosure timeline

January 28, 2026 CVE published
January 28, 2026 Record updated