CVE-2021-37400

Description

An attacker may obtain the user credentials from the communication between the PLC and the software. As a result, the PLC user program may be uploaded, altered, and/or downloaded.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.70% Top 30%
Vendor Advisory idec.com Vendor Advisory idec.com Vendor Advisory idec.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://us.idec.com/idec-us/en/USD/Programmable-Logic-Controller/Micro-PLC/FC6A-MicroSmart/c/MicroSmart_FC6A vendor advisory
https://us.idec.com/idec-us/en/USD/Software-Downloads-Automation-Organizer vendor advisory
https://www.idec.com/home/lp/pdf/2021-12-24-PLC.pdf vendor advisory
https://jvn.jp/en/vu/JVNVU92279973/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-37400?
CVE-2021-37400 has been scored as a critical severity vulnerability.
How to fix CVE-2021-37400?
To fix CVE-2021-37400, 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-2021-37400 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-37400 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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