CVE-2020-5531

Description

Mitsubishi Electric MELSEC C Controller Module and MELIPC Series MI5000 MELSEC-Q Series C Controller Module(Q24DHCCPU-V, Q24DHCCPU-VG User Ethernet port (CH1, CH2): First 5 digits of serial number 21121 or before), MELSEC iQ-R Series C Controller Module / C Intelligent Function Module(R12CCPU-V Ethernet port (CH1, CH2): First 2 digits of serial number 11 or before, and RD55UP06-V Ethernet port: First 2 digits of serial number 08 or before), and MELIPC Series MI5000(MI5122-VW Ethernet port (CH1): First 2 digits of serial number 03 or before, or the firmware version 03 or before) allow remote attackers to cause a denial of service and/or malware being executed via unspecified vectors.

9.8

CVSS

Severity: Critical

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.77% Top 30%

Vendor Advisory mitsubishielectric.com

Affected: Mitsubishi Electric Corporation Mitsubishi Electric MELSEC C Controller Module and MELIPC Series MI5000

References

Link	Tags
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2019-003_en.pdf	vendor advisory
https://jvn.jp/en/vu/JVNVU95424547/index.html	third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-5531?: CVE-2020-5531 has been scored as a critical severity vulnerability.
How to fix CVE-2020-5531?: To fix CVE-2020-5531, 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-2020-5531 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-5531 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.
What software or system is affected by CVE-2020-5531?: CVE-2020-5531 affects Mitsubishi Electric Corporation Mitsubishi Electric MELSEC C Controller Module and MELIPC Series MI5000.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.