In MB connect line mbDIALUP versions <= 3.9R0.0 a remote attacker can send a specifically crafted HTTP request to the service running with NT AUTHORITY\SYSTEM that will not correctly validate the input. This can lead to an arbitrary code execution with the privileges of the service.
Credits
Noam Moshe of Claroty reported this vulnerability to MB connect line GmbH. CERT@VDE coordinated.
