What is the vulnerability ID for this vulnerability?

The vulnerability ID for this vulnerability is CVE-2018-7854.

What is the severity of CVE-2018-7854?

The severity of CVE-2018-7854 is high with a score of 7.5.

How does CVE-2018-7854 vulnerability occur?

CVE-2018-7854 vulnerability occurs when invalid debug parameters are sent to the controller over Modbus.

Where can I find more information about CVE-2018-7854 vulnerability?

More information about CVE-2018-7854 vulnerability can be found at the following references: [Link 1](https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/), [Link 2](https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0765).

Vulnerability/
CVE-2018-7854

high

7.5

CWE

754

22/5/2019

3/2/2022

CVE-2018-7854

Q: Which software versions are affected by CVE-2018-7854?

All versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium are affected by CVE-2018-7854.

First published: Wed May 22 2019(Updated: )

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 denial of Service when sending invalid debug parameters to the controller over Modbus.

Credit: cybersecurity@se.com

Affected Software	Affected Version	How to fix
Schneider-electric Modicon Premium Firmware
Schneider-electric Modicon Premium
Schneider-electric Modicon Quantum Firmware
Schneider-electric Modicon Quantum
Schneider-electric Modicon M340 Firmware	<3.10
Schneider-electric Modicon M340
Schneider-electric Modicon M580 Firmware	<2.90
Schneider-electric Modicon M580

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Reference Links

Frequently Asked Questions

What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2018-7854.
What is the severity of CVE-2018-7854?
The severity of CVE-2018-7854 is high with a score of 7.5.
Which software versions are affected by CVE-2018-7854?
All versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium are affected by CVE-2018-7854.
How does CVE-2018-7854 vulnerability occur?
CVE-2018-7854 vulnerability occurs when invalid debug parameters are sent to the controller over Modbus.
Where can I find more information about CVE-2018-7854 vulnerability?
More information about CVE-2018-7854 vulnerability can be found at the following references: [Link 1](https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/), [Link 2](https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0765).

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