CVE-2019-6842: Medium severity schneider electric modicon m580 firmware vulnerability

Published Oct 29, 2019
·
Updated

A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the firmware with a missing web server image inside the package using FTP protocol.

Affected Software

8 affected components
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

Event History

Oct 29, 2019
CVE Published
via MITRE·02:47 PM
Data Sourced
via MITRE·02:47 PM
DescriptionWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the vulnerability ID of this vulnerability?

The vulnerability ID of this vulnerability is CVE-2019-6842.

2

What is the severity level of CVE-2019-6842?

The severity level of CVE-2019-6842 is medium.

3

Which software is affected by this vulnerability?

The Modicon M580, Modicon M340, Modicon BMxCRA, and 140CRA modules (all firmware versions) are affected by this vulnerability.

4

What is the risk of this vulnerability?

This vulnerability could cause a Denial of Service attack on the PLC when upgrading the firmware with a missing web server image inside the package.

5

Is there a fix available for this vulnerability?

Please refer to the vendor's website for information on available fixes.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203