CVE-2021-22749: Schneider Electric Modicon x80 BMXNOR0200H Rtu Firmware

Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days.

A CWE-200: Exposure of Sensitive Information to an Unauthorized Actor vulnerability exists in Modicon X80 BMXNOR0200H RTU SV1.70 IR22 and prior that could cause information leak concerning the current RTU configuration including communication parameters dedicated to telemetry, when a specially crafted HTTP request is sent to the web server of the module.

Affected products

• Schneider Electric Modicon x80 BMXNOR0200H Rtu Firmware: version sv1.6 only; version sv1.7 only

Published 2021-06-11. Last modified 2026-06-17.