Threats·Industrial & OTBreakingOmron Sysmac NJ/NX Series Machine Automation Controllers Vulnerable to EtherNet/IP CIP Session Hijacking (CVE-2026-53891)Omron and JPCERT/CC issue security advisories detailing an unauthenticated session hijacking flaw in Sysmac NJ and NX controllers exposing industrial motion controls.CST Newsroom8 Oct 20268 min read