istar

Discussions about iSTAR door controllers on WindowsForum.com focus on security vulnerabilities, particularly CVE-2025-43875 and CVE-2025-43876, which involve remote command injection and firmware verification flaws. These issues affect Johnson Controls' iSTAR family of door controllers, allowing attackers to gain privileged access and modify firmware. The content includes advisory details with CVSS scores, affected models, and fixed version thresholds. Users seek fixes and mitigation steps for these high-severity vulnerabilities, emphasizing the importance of updating firmware to secure access control systems.