The iSTAR Configuration Utility (ICU) tool leaks memory, which could result in the…
Priority LOW 28CWE-457Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-457 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00252 16th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Johnson Controls | iSTAR Configuration Utility (ICU) | up to All | — | No fix listed | CNA |
- iSTAR Configuration Utility (ICU) VendorJohnson Controls Affected up to All Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-26383
- 2026-10-03 Alias added: GHSA-h6x7-66p5-f6g7
References
More Johnson Controls vulnerabilities
- TI-2025-19346 Metasys product command injection vulnerability could allow remote SQL execution CVSS 4.0CRITICAL 9.5
- TI-2023-01901 Improper Authentication for OpenBlue Enterprise Manager Data Collector CVSS 3.1CRITICAL 10.0
- TI-2023-04421 An unauthorized user could access debug features in Quantum HD Unity products that were… CVSS 3.1CRITICAL 10.0
- TI-2026-17437 Johnson Controls -Frick Quantum HD- Unauthenticated Remote Code Execution CVSS 4.0HIGH 8.8
- TI-2025-19344 Johnson Controls Software House iSTAR Configuration Utility (ICU) Tool CVSS 4.0CRITICAL 9.3
- TI-2023-03311 Missing brute-force protection in Johnson Controls IQ Wifi 6 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-26383 · CVE Program
- CVE-2025-26383 · NVD
- FIRST EPSS
- GHSA-h6x7-66p5-f6g7 · GitHub Advisory Database · CC BY 4.0
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