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CVE-2025-26386

Stack-based Buffer Overflow in Johnson Controls iSTAR Configuration Utility (ICU) tool

HIGH
7.1
CVSS Score
Published: January 28, 2026 at 11:24 AM UTC
Updated: June 17, 2026 at 09:01 AM UTC
1 product affected across 1 vendorIstar Configuration Utility

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Severity
HIGH7.1
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Stack-based Buffer Overflow vulnerability in Johnson Controls iSTAR Configuration Utility (ICU) allows Overflow Buffers.This issue affects iSTAR Configuration Utility (ICU): iSTAR Configuration Utility (ICU) tool version 6.9.7 and prior.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories
Source: cverecord
https://www.cisa.gov/news-events/ics-advisories/icsa-26-022-04

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHjci
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-121

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