CVE-2021-20608

Description

Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior allows a remote unauthenticated attacker to cause a DoS condition in GX Works2 by getting GX Works2 to read a tampered program file from a Mitsubishi Electric PLC by sending malicious crafted packets to tamper with the program file.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.26%

Vendor Advisory mitsubishielectric.com

Affected: n/a GX Works2

References

Link	Tags
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-020_en.pdf	vendor advisory
https://jvn.jp/vu/JVNVU93019896/index.html	third party advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-350-04	third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2021-20608?: CVE-2021-20608 has been scored as a high severity vulnerability.
How to fix CVE-2021-20608?: To fix CVE-2021-20608, 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-2021-20608 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-20608 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-2021-20608?: CVE-2021-20608 affects n/a GX Works2.

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