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    CVE-2025-53696

    iSTAR Ultra performs a firmware verification on boot, however the verification does not inspect certain portions of the firmware. These firmware parts may contain malicious code. Tested up to firmware 6.9.2, later firmwares are also possibly affected.

    Published:Jul 28, 2025
    Last Modified:Apr 15, 2026
    EPS:Jul 28, 2025
    EPSS Score:0.00013
    CVSS Score:9.3

    Affected Products

    Vendor
    Johnsoncontrols
    Product
    Istar Ultra

    Exploits

    No exploit reference

    Related CVEs

    CVE-2025-43876 (CVSS 8.7) — Under certain circumstances a successful exploitation could result in access to the device.…
    CVE-2025-43875 (CVSS 8.7) — Under certain circumstances a successful exploitation could result in access to the device.…
    CVE-2025-43873 (CVSS 8.7) — Successful exploitation of these vulnerabilities could allow an attacker to modify firmware and gain full acce…
    CVE-2025-61736 (CVSS 7.1) — Successful exploitation of this vulnerability could result in the product failing to re-establish communicatio…
    CVE-2025-53695 (CVSS 9.4) — OS Command Injection in iSTAR Ultra products web application allows an authenticated attacker to gain even mor…
    CVE-2023-3127 (CVSS 7.5) — An unauthenticated user could log into iSTAR Ultra, iSTAR Ultra LT, iSTAR Ultra G2, and iSTAR Edge G2 with adm…
    CVE-2022-21941 (CVSS 10) — All versions of iSTAR Ultra prior to version 6.8.9.CU01 are vulnerable to a command injection that could allow…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High