CVE-2020-7542

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for affected versions), that could cause denial of service when a specially crafted Read Physical Memory request over Modbus is sent to the controller.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.39%
Vendor Advisory se.com
Affected: n/a Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for affected versions)
Published at:
Updated at:

References

Link Tags
https://www.se.com/ww/en/download/document/SEVD-2020-343-08/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-7542?
CVE-2020-7542 has been scored as a high severity vulnerability.
How to fix CVE-2020-7542?
To fix CVE-2020-7542, 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-2020-7542 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-7542 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-2020-7542?
CVE-2020-7542 affects n/a Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for affected versions).
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