6.5
Medium
CVE-2025-40556 A vulnerability has been identified in BACnet ATEC 550-440 (All versions), BACnet ATEC 550-441 (All versions), BACnet…
Description
A vulnerability has been identified in BACnet ATEC 550-440 (All versions), BACnet ATEC 550-441 (All versions), BACnet ATEC 550-445 (All versions), BACnet ATEC 550-446 (All versions). Affected devices improperly handle specific incoming BACnet MSTP messages. This could allow an attacker residing in the same BACnet network to send a specially crafted MSTP message that results in a denial of service condition of the targeted device. A power cycle is required to restore the device's normal operation.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| BACnet ATEC 550-440 | Versions not published | |
| BACnet ATEC 550-441 | Versions not published | |
| BACnet ATEC 550-445 | Versions not published | |
| BACnet ATEC 550-446 | Versions not published |