CVE-2019-6819

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists which could cause a possible Denial of Service when specific Modbus frames are sent to the controller in the products: Modicon M340 - firmware versions prior to V3.01, Modicon M580 - firmware versions prior to V2.80, All firmware versions of Modicon Quantum and Modicon Premium.

Score

CVSS 3.1 7.5 High

Status

Modified - cybersecurity@se.com

Published

2019-05-22

Last modified

2026-05-29

Weaknesses

CWE-754

Affected products

• Modicon M340 Firmware (Schneider-electric)
• Modicon M580 Firmware (Schneider-electric)
• Modicon Premium Firmware (Schneider-electric)
• Modicon Quantum Firmware (Schneider-electric)

References

• http://www.securityfocus.com/bid/109004
• https://www.schneider-electric.com/en/download/document/SEVD-2019-134-05/