vulnerability
Mitsubishi Electric MELSEC iQ-F Series
High
Summary
This advisory from CISA details a vulnerability (CVE-2026-8805) in the Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP Module. The vulnerability, stemming from an integer overflow, allows a remote attacker to trigger a denial-of-service condition by establishing a large number of TCP connections. Affected systems, primarily used in critical manufacturing, require updates to version 1.001 or later to mitigate the risk.
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