CVE-2024-41798
A vulnerability has been identified in SENTRON 7KM PAC3200 (All versions). Affected devices only provide a 4-digit PIN to protect from administrative access via Modbus TCP interface. Attackers with access to the Modbus TCP interface could easily bypass this protection by brute-force attacks or by sniffing the Modbus clear text communication.
More information : https://cert-portal.siemens.com/productcert/html/ssa-850560.html