Description
The DNP Master Driver in Software Toolbox TOP Server before 5.12.140.0 allows remote attackers to cause a denial of service (master-station infinite loop) via crafted DNP3 packets to TCP port 20000 and allows physically proximate attackers to cause a denial of service (master-station infinite loop) via crafted input over a serial line.
Advisories 1
- ICSA-13-234-02 Top Server OPC Improper Input Validation Vulnerability CISA ICS & IT advisories · Jun 6, 2025