Heap-Based Buffer Overflow in Mitsubishi Electric FA Engineering Software
CVE-2021-20587

9.8CRITICAL

Key Information:

Vendor
Mitsubishi Electric Corporation
Status
Fa Engineering Software
Vendor
CVE Published:
19 February 2021

Summary

A heap-based buffer overflow vulnerability identified in Mitsubishi Electric's FA Engineering Software allows remote unauthenticated attackers to potentially disrupt software functionality and cause denial of service (DoS) conditions. The flaw may enable an attacker to execute harmful programs on the underlying personal computer by sending specially crafted packets that spoof the MELSEC, GOT, or FREQROL systems. Without proper mitigations, organizations using affected versions are left at risk.

Affected Version(s)

FA Engineering Software CPU Module Logging Configuration Tool versions 1.112R and prior

FA Engineering Software CW Configurator versions 1.011M and prior

FA Engineering Software Data Transfer versions 3.44W and prior

References

https://www.mitsubishielectric.com/en/psirt/vulnerability...
vendor-advisory
https://jvn.jp/vu/JVNVU92330101/index.html
government-resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-049-02
government-resource

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.