CVE-2019-6831: Schneider Electric BMXNOR0200H Firmware

High severity, CVSS 8.6. EPSS: 1.4% chance of exploitation in the next 30 days.

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active connections when an unusually high number of IEC 60870- 5-104 packets are received by the module on port 2404/TCP.

Affected products

Published 2019-09-17. Last modified 2026-06-17.