CVE-2019-6833: Schneider Electric Hmigto Firmware

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

A CWE-754 – Improper Check for Unusual or Exceptional Conditions vulnerability exists in Magelis HMI Panels (all versions of - HMIGTO, HMISTO, XBTGH, HMIGTU, HMIGTUX, HMISCU, HMISTU, XBTGT, XBTGT, HMIGXO, HMIGXU), which could cause a temporary freeze of the HMI when a high rate of frames is received. When the attack stops, the buffered commands are processed by the HMI panel.

Affected products

• Schneider Electric Hmigto Firmware: affected versions not specified
• Schneider Electric Hmigtu Firmware: affected versions not specified
• Schneider Electric Hmigxo Firmware: affected versions not specified
• Schneider Electric Hmigxu Firmware: affected versions not specified
• Schneider Electric Hmiscu Firmware: affected versions not specified
• Schneider Electric Hmisto Firmware: affected versions not specified
• Schneider Electric Hmistu Firmware: affected versions not specified
• Schneider Electric Xbtgh Firmware: affected versions not specified
• Schneider Electric Xbtgt Firmware: affected versions not specified

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