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Rockwell Automation FLEX 5000 I/O: Input Validation Flaw

⚠️ Rockwell Automation has disclosed two improper input validation vulnerabilities in the FLEX 5000 I/O modules (5069-IF8 and 5069-IY8) assigned CVE-2025-7861 and CVE-2025-7862. Successful exploitation can remotely induce a fault state that requires a power cycle to recover, producing a denial-of-service condition. Both issues carry elevated CVSS v4 scores (8.7) and are exploitable with low attack complexity. Rockwell recommends upgrading affected modules to V2.012 or later and following established security best practices.