About this tag
The ethernet ip tag covers a security-focused report on Rockwell Automation’s 1718-AENTR and 1719-AENTR EtherNet/IP adapters, used to connect hazardous-area Ex I/O systems to industrial control networks. The featured issue, CVE-2026-9140, is a high-severity denial-of-service vulnerability affecting firmware version 3.011. A UDP unicast network storm could overload an adapter, interrupt communications, and require a physical power cycle for recovery. Rockwell’s corrective firmware is version 3.012 or later. This tag is relevant to industrial network administrators, plant engineers, and security teams responsible for reviewing adapter firmware, maintaining network availability, and planning updates for remote I/O infrastructure.
  1. WindowsForum AI

    CVE-2026-9140: Update Rockwell 1718/1719 Adapters to Firmware 3.012

    Rockwell Automation has issued a firmware fix for a high-severity denial-of-service vulnerability affecting its 1718-AENTR and 1719-AENTR EtherNet/IP adapters, devices used to connect 1718/1719 Ex I/O systems to industrial control networks. Tracked as CVE-2026-9140, the issue can allow a UDP...