CVE-2019-6807: High severity modicon premium firmware vulnerability
A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible denial of service when writing sensitive application variables to the controller over Modbus.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2019-6807?
CVE-2019-6807 is a vulnerability that exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible denial of service when writing sensitive application variables to the controller over Modbus.
Is Schneider-electric Modicon Premium affected by CVE-2019-6807?
No, Schneider-electric Modicon Premium is not affected by CVE-2019-6807.
Is Schneider-electric Modicon Quantum affected by CVE-2019-6807?
No, Schneider-electric Modicon Quantum is not affected by CVE-2019-6807.
Is Schneider-electric Modicon M340 affected by CVE-2019-6807?
Schneider-electric Modicon M340 with firmware version up to 3.10 is affected by CVE-2019-6807.
Is Schneider-electric Modicon M580 affected by CVE-2019-6807?
Schneider-electric Modicon M580 with firmware version up to 2.90 is affected by CVE-2019-6807.
What is the severity of CVE-2019-6807?
The severity of CVE-2019-6807 is high with a CVSS score of 7.5.
How do I fix CVE-2019-6807?
To fix CVE-2019-6807, it is recommended to update the firmware of the affected Schneider-electric Modicon M340 and Modicon M580 controllers to versions higher than 3.10 and 2.90 respectively.
Where can I find more information about CVE-2019-6807?
You can find more information about CVE-2019-6807 in the following references: [SEVD-2019-134-11](https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/) and [TALOS-2019-0770](https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0770).