What is CVE-2018-7845?

CVE-2018-7845 is a vulnerability known as CWE-125: Out-of-bounds Read in Schneider-electric Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium firmware.

What is the severity of CVE-2018-7845?

The severity of CVE-2018-7845 is high with a severity value of 7.5.

How can I fix CVE-2018-7845?

To fix CVE-2018-7845, it is recommended to apply the necessary security updates provided by Schneider-electric.

Where can I find more information about CVE-2018-7845?

You can find more information about CVE-2018-7845 in the following references: - [CVE-2018-7845](https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/) - [TALOS-2018-0745](https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0745)

Vulnerability/
CVE-2018-7845

high

7.5

CWE

125

22/5/2019

3/2/2022

CVE-2018-7845

First published: Wed May 22 2019(Updated: )

A CWE-125: Out-of-bounds Read vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause the disclosure of unexpected data from the controller when reading specific memory blocks in the controller over Modbus.

Credit: cybersecurity@se.com

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

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Frequently Asked Questions

What is CVE-2018-7845?
CVE-2018-7845 is a vulnerability known as CWE-125: Out-of-bounds Read in Schneider-electric Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium firmware.
What is the severity of CVE-2018-7845?
The severity of CVE-2018-7845 is high with a severity value of 7.5.
How does CVE-2018-7845 affect Schneider-electric Modicon M580?
CVE-2018-7845 can lead to the disclosure of unexpected data from the controller when reading specific memory blocks in Schneider-electric Modicon M580 over Modbus.
How can I fix CVE-2018-7845?
To fix CVE-2018-7845, it is recommended to apply the necessary security updates provided by Schneider-electric.
Where can I find more information about CVE-2018-7845?
You can find more information about CVE-2018-7845 in the following references: - [CVE-2018-7845](https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/) - [TALOS-2018-0745](https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0745)

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