CVE-2025-53698 · Infrastructure
NO FIX YET · SEE WHAT TO DO
Johnson Controls iSTAR Ultra and iSTAR Ultra SE lack a protection mechanism on an alternate hardware interface, which lets an attacker bypass intended functionality. The sources describe it as a functionality bypass (CAPEC-554) and do not detail what an attacker can reach.
first public Nov 13, 2026 · 1 source
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Organizations running Johnson Controls iSTAR Ultra or iSTAR Ultra SE before 6.9.2.CU02 are affected. The sources do not say which hardware interface is involved or what configuration exposes it, so teams should check whether the alternate interface is reachable on their deployment.
Not affected if patched-version
Who cares access-control, istar-ultra, johnson-controls, physical-security
6.9.2.CU02 or later6.9.2.CU02 or laterMissing protection mechanism for alternate hardware interface vulnerability in Johnson Controls iSTAR Ultra and Johnson Controls iSTAR Ultra SE allows CAPEC‑554: Functionality Bypass.
This issue affects iSTAR Ultra: before 6.9.2.CU02; iSTAR Ultra SE: before 6.9.2.CU02.
This page as .md · .json · 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
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