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Fencer Intel
high 7.0

CVE-2025-53699 json

Missing protection mechanism for alternate hardware interface vulnerability in Johnson Controls iSTAR Ultra, Johnson Controls iSTAR Ultra S…

published 9h ago modified 9h ago also EUVD-2025-211329

cvss
7.0
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
—
no EPSS score yet
public exploits
0
none known

Summary

Missing protection mechanism for alternate hardware interface vulnerability in Johnson Controls iSTAR Ultra, Johnson Controls iSTAR Ultra SE, Johnson Controls iSTAR Ultra G2, Johnson Controls iSTAR Ultra G2 SE, and Johnson Controls iSTAR Edge G2 allows CAPEC‑554: Functionality Bypass.

This issue affects iSTAR Ultra: before 6.9.2.CU02; iSTAR Ultra SE: before 6.9.2.CU02; iSTAR Ultra G2: before 6.9.2.CU02; iSTAR Ultra G2 SE: before 6.9.2.CU02; iSTAR Edge G2: before 6.9.2.CU02.

Patch / fix

  • Johnson Controls iSTAR Ultra 6.9.2.CU02
  • Johnson Controls iSTAR Ultra SE 6.9.2.CU02
  • Johnson Controls iSTAR Ultra G2 6.9.2.CU02
  • Johnson Controls iSTAR Ultra G2 SE 6.9.2.CU02
  • Johnson Controls iSTAR Edge G2 6.9.2.CU02

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-224-02 updated cvss 6.8

Johnson Controls iSTAR Ultra, iSTAR Ultra SE, iSTAR Ultra G2, iSTAR Ultra G2 SE, iSTAR Edge G2 (Update A)

  • Johnson Controls iSTAR Edge G2
    affected: mitigation “Johnson Controls recommends users upgrade iStar Ultra and Ultra SE door controllers to version 6.9.8 to protect for cases where the attacker has physical access to the door controller.” johnsoncontrols.com
  • Johnson Controls iSTAR Ultra <6.9.8
    affected: vendor fix, mitigation “Johnson Controls recommends users upgrade iStar Ultra and Ultra SE door controllers to version 6.9.8 to protect for cases where the attacker has physical access to the door controller.” johnsoncontrols.com
  • Johnson Controls iSTAR Ultra G2 Johnson Controls iSTAR Ultra G2 SE Johnson Controls iSTAR Ultra SE <6.9.8
    affected: mitigation “Johnson Controls recommends users upgrade iStar Ultra and Ultra SE door controllers to version 6.9.8 to protect for cases where the attacker has physical access to the door controller.” johnsoncontrols.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CVSS scores

assigned by version score vector
CNA 4.0 7.0 CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 7.0 CVSS:4.0/AV:P/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:X

Affected products

  • Johnson Controls iSTAR Ultra
  • Johnson Controls iSTAR Ultra SE
  • Johnson Controls iSTAR Ultra G2
  • Johnson Controls iSTAR Ultra G2 SE
  • Johnson Controls iSTAR Edge G2

Classification

Weakness
  • CWE-1299 Missing Protection Mechanism for Alternate Hardware Interface

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.