CVE-2026-34021 Lack of cryptographic protection in Wertheim SafeController 5400 enables RS-485 message sniffing and replay

The Wertheim SafeController 5400, Controller 5400 - AssemblyVersion 6.11.8130.22320, uses RS-485 communication between the server and the microcontroller without cryptographic protection. An attacker with access to the communication path between the server and the microcontroller can sniff RS-485...

CVE-2026-34021

The CVE-2026-34021 entry concerns Wertheim SafeController 5400 (Controller 5400) with AssemblyVersion 6.11.8130.22320. The root cause is lack of cryptographic protection in RS-485 communications between the server and the microcontroller. This enables an attacker with access to the RS-485 path to...