CVE-2019-6815: Schneider Electric Modicon Quantum Firmware

Critical severity, CVSS 9.1. EPSS: 1.4% chance of exploitation in the next 30 days.

In Modicon Quantum all firmware versions, CWE-264: Permissions, Privileges, and Access Control vulnerabilities could cause a denial of service or unauthorized modifications of the PLC configuration when using Ethernet/IP protocol.

Affected products

• Schneider Electric Modicon Quantum Firmware: any version

Published 2019-05-22. Last modified 2026-06-17.