Analysis Summary

CVE-2025-3755

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules allows a remote unauthenticated attacker to read information in the product, to cause a Denial-of-Service (DoS) condition in MELSOFT connection, or to stop the operation of the CPU module (causing a DoS condtion on the CPU module), by sending specially crafted packets. The product is needed to reset for recovery.

Impact

• Denial of Service
• Information Disclosure

Indicators of Compromise

CVE

• CVE-2025-3755

Affected Vendors

Affected Products

• Mitsubishi Electric MELSEC iQ-F Series CPU All versions

Remediation

Refer to Mitsubishi Electric Security Advisory for patch, upgrade, or suggested workaround information.

Mitsubishi Electric Security Advisory