Most severe vulnerabilities for vendor "istar"

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: Johnson Controls Inc. ICUJohnson Controls Software House iSTAR Configuration Utility (ICU) Tool

Risk 84

Severity

9.3

Buffer Overflow

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Under certain circumstances the iSTAR Configuration Utility (ICU) tool could have a buffer overflow issue

Remedy

Upgrade ICU to version 6.9.5 or greater

First published (updated )

CVE-2025-26382

iSTAR UltraiSTAR Ultra performs a firmware verification on boot, however the verification does not inspect cert…

Risk 70

Severity

9.3

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

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.

First published (updated )

CVE-2025-53696

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