Improper Input Validation
NETxAutomation NETxEIB OPC Server before 3.0.1300 does not properly validate OLE for Process Control (OPC) server handles, which allows attackers to cause a denial of service or possibly execute arbitrary code via unspecified vectors involving the (1) IOPCSyncIO::Read, (2) IOPCSyncIO::Write, (3) IOPCServer::AddGroup, (4) IOPCServer::RemoveGroup, (5) IOPCCommon::SetClientName, and (6) IOPCGroupStateMgt::CloneGroup functions, which allow access to arbitrary memory. NOTE: the vectors might be limited to attackers with physical access.
CWE-20 - Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.