CVE-2019-6844

Description

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 atack on the PLC when upgrading the controller with a firmware package containing an invalid web server image using FTP protocol.

Category

4.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.38%
Vendor Advisory se.com
Affected: n/a Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2019-6844?
CVE-2019-6844 has been scored as a medium severity vulnerability.
How to fix CVE-2019-6844?
To fix CVE-2019-6844, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-6844 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-6844 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-6844?
CVE-2019-6844 affects n/a Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info).
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