CVE-2025-3511 is a high-severity (CVSS 7.5) denial-of-service vulnerability in the Ethernet function of over 50 Mitsubishi Electric FA product models. A remote, unauthenticated attacker can send a specially crafted UDP packet to cause a DoS condition, timeout error, or communication delay. Most affected products require a system reset for recovery. Firmware updates are available for all affected products.
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Mitsubishi Electric Multiple FA Products (Update D) (CVE-2025-3511)