CVE-2025-43873 HIGH

CVE-2025-43873: iSTAR Ultra, Ultra SE, Ultra G2, Ultra G2 SE, iSTAR Edge G2 - Authenticated web application command injection - setFaultDebounce

Vendor Johnson Control
Product iSTAR Ultra, iSTAR Ultra SE, iSTAR Ultra G2, iSTAR Ultra G2 SE, iSTAR Edge G2
Weakness CWE-78
Published December 17, 2025
Last update December 17, 2025
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Successful exploitation of these vulnerabilities could allow an attacker to modify firmware and gain full access to the device.

Key dates

02Disclosure timeline

December 17, 2025 CVE published
December 17, 2025 Record updated