What is the vulnerability ID for this Modicon M580 vulnerability?

The vulnerability ID for this Modicon M580 vulnerability is CVE-2019-6843.

What is the severity of CVE-2019-6843?

The severity of CVE-2019-6843 is medium, with a severity value of 4.9.

What is the CWE ID for this vulnerability?

The CWE ID for this vulnerability is CWE-755: Improper Handling of Exceptional Conditions.

How can this vulnerability be exploited?

This vulnerability could be exploited to cause a Denial of Service attack on the PLC when upgrading the firmware.

Vulnerability/
CVE-2019-6843

medium

4.9

CWE

755

29/10/2019

3/2/2022

CVE-2019-6843

First published: Tue Oct 29 2019(Updated: )

A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the controller with an empty firmware package using FTP protocol.

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 Bmxcra Firmware
Schneider-electric Modicon Bmxcra
Schneider-electric Modicon 140cra Firmware
Schneider-electric Modicon 140cra

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Reference Links

https://www.se.com/ww/en/download/document/SEVD-2019-281-02/

Frequently Asked Questions

What is the vulnerability ID for this Modicon M580 vulnerability?
The vulnerability ID for this Modicon M580 vulnerability is CVE-2019-6843.
What is the severity of CVE-2019-6843?
The severity of CVE-2019-6843 is medium, with a severity value of 4.9.
Which software versions are affected by CVE-2019-6843?
CVE-2019-6843 affects Modicon M580 with firmware versions prior to V3.10, Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions).
What is the CWE ID for this vulnerability?
The CWE ID for this vulnerability is CWE-755: Improper Handling of Exceptional Conditions.
How can this vulnerability be exploited?
This vulnerability could be exploited to cause a Denial of Service attack on the PLC when upgrading the firmware.

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