Denial-of-Service and Remote Code Execution Vulnerability in MELSEC Series CPU module

Vulnerability Description

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on a target product by sending specially crafted packets. A system reset of the product is required for recovery from a denial of service (DoS) condition and malicious code execution.

References

• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-003_en.pdf
• https://jvn.jp/vu/JVNVU94650413
• https://www.cisa.gov/news-events/ics-advisories/icsa-23-143-03