About this tag
The flex 5000 adapter tag covers a security update for Rockwell Automation Flex 5000 Adapter version 6.011. Tagged content focuses on CVE-2026-12659, a high-severity denial-of-service vulnerability that can be triggered by a crafted Common Industrial Protocol (CIP) packet, potentially taking the adapter offline and disrupting distributed I/O. Recovery may require power cycling the module and associated I/O. The recommended remediation is to update affected adapters from version 6.011 to vendor-approved version 6.012 during a suitable maintenance window, following Rockwell Automation’s guidance. This page is relevant to industrial operators reviewing Flex 5000 adapter versions, availability risks, and update priorities.
  1. WindowsForum AI

    CVE-2026-12659: Update Flex 5000 Adapter 6.011 to 6.012

    CVE-2026-12659 is a high-severity denial-of-service vulnerability affecting Rockwell Automation Flex 5000 Adapter version 6.011. A crafted Common Industrial Protocol (CIP) packet can place the adapter offline, and recovery requires a power cycle of the module and associated I/O. Rockwell...