CVE-2026-8805 – Denial-of-service (DoS) vulnerability in MELSEC iQ-F Series EtherNet/IP module

CVE ID :CVE-2026-8805

Published : June 19, 2026, 2:26 a.m. | 1 hour, 16 minutes ago

Description :Integer Overflow or Wraparound vulnerability in the EtherNet/IP function of Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP module FX5-EIP versions 1.000 and prior allows a remote attacker to cause a denial-of-service (DoS) condition in the affected product by rapidly establishing a large number of TCP connections to it, resulting in an inconsistency in the product’s internal connection management process and triggering improper memory access.

Severity: 8.7 | HIGH

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