CVE-2025-40556 | Siemens BACnet ATEC 550-446 MSTP Message denial of service (ssa-828116)

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A vulnerability was found in Siemens BACnet ATEC 550-440, BACnet ATEC 550-441, BACnet ATEC 550-445 and BACnet ATEC 550-446. It has been declared as critical. This vulnerability affects unknown code of the component MSTP Message Handler. The manipulation leads to denial of service.

This vulnerability was named CVE-2025-40556. Access to the local network is required for this attack to succeed. There is no exploit available.VulDB Recent EntriesRead More