CVE-2020-7540

Description

A CWE-306: Missing Authentication for Critical Function vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause unauthenticated command execution in the controller when sending special HTTP requests.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.31%
Vendor Advisory se.com
Affected: n/a Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions)
Published at:
Updated at:

References

Link Tags
https://www.se.com/ww/en/download/document/SEVD-2020-343-04/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-7540?
CVE-2020-7540 has been scored as a critical severity vulnerability.
How to fix CVE-2020-7540?
To fix CVE-2020-7540, 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-2020-7540 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-7540 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-2020-7540?
CVE-2020-7540 affects n/a Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions).
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