melsec

About this tag
The MELSEC tag on WindowsForum.com covers discussions about Mitsubishi Electric's MELSEC iQ-F series programmable logic controllers (PLCs), particularly focusing on security vulnerabilities. Recent content highlights a denial-of-service (DoS) issue in the embedded web server of MELSEC iQ-F CPU modules, which can be exploited remotely via crafted HTTP traffic. This advisory includes a CVE identifier and a CVSS v3 base score of 5.3. The tag is relevant for industrial control system (ICS) security professionals, automation engineers, and IT administrators managing or securing Mitsubishi PLCs in manufacturing or critical infrastructure environments.

  1. MELSEC iQ-F Web Server DoS: Length Handling Exposure in PLCs

    Mitsubishi Electric’s MELSEC iQ‑F family of CPU modules is the subject of a fresh industrial‑control systems advisory describing a remotely exploitable denial‑of‑service condition in the product’s embedded Web server function — an issue that can be triggered by specially crafted HTTP traffic and...
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    • Thread
    • advisory automation cisa cve-2025-5514 dos firewall ics industrial control systems ip filtering iq-f melsec mitsubishi electric network segmentation ot security patch management psirt remote diagnostics vulnerability web server windows
    • Replies: 0
    • Forum: Security Alerts