CVE-2024-32752

criticalpriority · track · 0OT risk · elevatedEPSS 0.006 · 48 %ileEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.59% (48th) EPSS
CVSS 9.1 · critical
Is it mine?
12 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

The iSTAR door controllers running firmware prior to version 6.6.B, does not support authenticated communications with ICU, which may allow an attacker to gain unauthorized access

01

remediations

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

No vendor fix yet; a mitigation is available.

  • MitigationSoftware House iStar Pro, Edge and eX door controllerscisa_csaf_ot

    Aligning with CISA recommendations, Johnson Controls recommends taking steps to minimize risks to all building automation systems.

  • MitigationSoftware House iStar Ultra and Ultra LT door controllerscisa_csaf_ot

    Aligning with CISA recommendations, Johnson Controls recommends taking steps to minimize risks to all building automation systems.

  • MitigationiSTAR Configuration Utility (ICU) Toolcisa_csaf_ot

    Aligning with CISA recommendations, Johnson Controls recommends taking steps to minimize risks to all building automation systems.

02

cvss

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

9.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.1

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Hsecondary · CISA US
v3.19.1criticalAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Hsecondaryexploitability 3.9 · impact 5.2
v4.08.8highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.08.8highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/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
v4.06.8mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/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)
03

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USCWE-306USCWE-306US
05

affected products (12)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-24-158-04Johnson Controls Software House iStar Door Controller (Update A)2024-06-06icsa · cisa_csaf_otUS

    Successful exploitation of this vulnerability may allow an attacker to gain unauthorized access to the iSTAR Pro door controller.

07

also known as (5)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otNVDCVE.orgMITRE
published 2024-06-06modified 2026-06-17
09

references (9)

External citations — patches, advisories, analysis.

scry

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