CVE-2025-26382

criticalpriority · track · 0EPSS 0.006 · 47 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.58% (47th) EPSS

CVSS 9.8 · critical

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-28

Under certain circumstances the iSTAR Configuration Utility (ICU) tool could have a buffer overflow issue

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedICUcisa_csaf_ot
Johnson Controls recommends users upgrade ICU to Version 6.9.5 or greater.
MitigationICUcisa_csaf_ot
Aligning with CISA recommendations, Johnson Controls recommends taking steps to minimize risks to all building automation systems.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v4.09.3criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.09.3criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · productsecurity@jci.com

v4.08.1highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-121USCWE-121USCWE-121US

affected products (4)

Products and version ranges known to be affected.

Johnson Controls Inc. ICU: <6.9.5all versionscisa_csaf_otUS
Johnson Controls Inc. ICU< 6.9.5cisa_csaf_otUS
Johnson Controls iSTAR Configuration Utility (ICU)0 → 6.9.5enisa_euvdEU
Sensormatic Electronics iSTAR Configuration Utility≤ 6.9.5fstec_bduRU

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-25-114-05Johnson Controls Software House iSTAR Configuration Utility (ICU) Tool2025-04-24icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability may allow an attacker to execute arbitrary code.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot NVD CVE.org MITRE

published 2025-04-24modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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