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.
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CVE-2025-53697
CVSS 4.0 · 8.4 High
EPSS n/a
KEV · Not listed
Vendors
Products
CVE-2025-43873
iSTAR Ultra, Ultra SE, Ultra G2, Ultra G2 SE, iSTAR Edge G2 - Authenticated web application command injection - setFaultDebounce
Successful exploitation of these vulnerabilities could allow an attacker to modify firmware and gain full access to the device.
CVSS 4.0 · 8.7 High
EPSS < 1%
KEV · Not listed
Vendors
Products
CVE-2025-43875
iSTAR Ultra, Ultra SE, Ultra G2, Ultra G2 SE, iSTAR Edge G2 - Authenticated web application command injection - getOptionsInfo
Under certain circumstances a successful exploitation could result in access to the device.
CVSS 4.0 · 8.7 High
EPSS < 1%
KEV · Not listed
Vendors
Products
CVE-2025-43876
iSTAR Ultra, Ultra SE, Ultra G2, Ultra G2 SE, iSTAR Edge G2 - Authenticated web application command injection - get8021xSettings
Under certain circumstances a successful exploitation could result in access to the device.
CVSS 4.0 · 8.7 High
EPSS < 1%
KEV · Not listed
Vendors
Products
CVE-2023-3127
Improper Authentication in iSTAR
An unauthenticated user could log into iSTAR Ultra, iSTAR Ultra LT, iSTAR Ultra G2, and iSTAR Edge G2 with administrator rights.
CVSS 3.1 · 7.5 High
EPSS < 1%
KEV · Not listed
Vendors
Products
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