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Fencer Intel
high 8.4

CVE-2025-53697 json

Use of default credentials vulnerability in Johnson Controls iSTAR Ultra, Johnson Controls iSTAR Ultra SE, Johnson Controls iSTAR Ultra G2,…

published yesterday modified yesterday also EUVD-2025-211326

cvss
8.4
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

Use of default credentials 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‑560: Use of Default Credentials.

This issue affects iSTAR Ultra: before 2.9.2.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 2.9.2.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 6.7

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

  • Johnson Controls iSTAR Edge G2 <=6.9.2.CU02
    affected: mitigation “Johnson Controls made firmware version 6.9.3 available in 2024 to fix CVE-2025-53695 and lower the risk of exploitation for CVE-2025-53696, CVE-2025-53697, and CVE-2025-53700.” johnsoncontrols.com
  • Johnson Controls iSTAR Ultra <=6.9.2.CU02
    affected: vendor fix, mitigation “Johnson Controls made firmware version 6.9.3 available in 2024 to fix CVE-2025-53695 and lower the risk of exploitation for CVE-2025-53696, CVE-2025-53697, and CVE-2025-53700.” johnsoncontrols.com
  • Johnson Controls iSTAR Ultra G2 <=6.9.2.CU02 Johnson Controls iSTAR Ultra G2 SE <=6.9.2.CU02 Johnson Controls iSTAR Ultra SE <=6.9.2.CU02
    affected: mitigation “Johnson Controls made firmware version 6.9.3 available in 2024 to fix CVE-2025-53695 and lower the risk of exploitation for CVE-2025-53696, CVE-2025-53697, and CVE-2025-53700.” 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

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-14).

CVSS scores

assigned by version score vector
CNA 4.0 8.4 CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.4 CVSS:4.0/AV:L/AC:L/AT:N/PR:H/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

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.