CVE-2025-53696 is a critical firmware verification bypass vulnerability affecting iSTAR Ultra devices, potentially up to firmware version 6.9.2 and beyond. The flaw allows an attacker with high privileges to inject malicious code into unverified portions of the firmware, leading to complete compromise of confidentiality, integrity, and availability. Despite its critical CVSS score of 9.3, there is currently no public exploit code available, nor any evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Johnson Controls, Inc | ISTAR Ultra | >= 0, <= 6.9.2CNA affecteddefault unknown |
CVSS version used by this source: 4.0
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
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.7 Bluesky, 0.3 Mastodon, and 0.0 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.