View CSAF Summary Successful exploitation of this vulnerability could allow a remote attacker to cause a denial-of-service (DoS) condition in the affected product by continuously sending a large number of communication packets to the Ethernet port of the product in a short period of time, increasing the processing load of the product, preventing the internal anomaly-detection processing from being performed, and causing the communication function to stop. The following versions of Mitsubishi Electric Co.'s MELSEC iQ-F Series FX5-ENET/IP Ethernet Module are affected: Mitsubishi Electric MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP vers:all/* (CVE-2026-8806) CVSS Vendor Equipment Vulnerabilities v3 7.5 Mitsubishi Electric Mitsubishi Electric Co.'s MELSEC iQ-F Series FX5-ENET/IP Ethernet Module Expected Behavior Violation Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: Japan Vulnerabilities Expand All + CVE-2026-8806 Expected Behavior Violation (CWE-440) vulnerability exists in MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP. This vulnerability could allow a remote attacker to cause a denial-of-service (DoS) condition in the affected product by continuously sending a large number of communication packets to the Ethernet port of the product in a short period of time, increasing ...