[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fBfyKxSbaQVLeaBaVBeP2-KhYb5d08WjIJ0UJxvwc414":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"status":22,"created_at":23,"published_at":24,"article":25,"tags":29,"podcasts":48},"6cd24377-d1c8-4eee-a224-0819bfdf6e00","rockwell-rslinx-buffer-overflow-enables-remote-code-execution-in-critical-infrastructure","9af17ea1-a0fd-45bc-8550-97c08b0a5c79","Rockwell RSLinx Buffer Overflow Enables Remote Code Execution in Critical Infrastructure","A stack-based buffer overflow vulnerability (CVE-2020-13573) in Rockwell Automation's RSLinx Classic software allows attackers to remotely execute code or trigger denial-of-service conditions, putting critical infrastructure sectors such as manufacturing, energy, and water treatment at serious risk. The root cause lies in insufficient input validation within the software, a coding flaw that persisted across versions up to 4.50.00. This matters greatly because operational technology (OT) environments often run legacy software without timely patching, creating long windows of exposure. A successful exploit in these sectors could disrupt essential services, cause physical damage, or endanger public safety. The availability of a vendor-supplied patch makes delayed remediation especially difficult to justify.","**Immediate Actions:**\n- Upgrade RSLinx Classic to version 4.60.00 or later, or apply the vendor-supplied patch immediately.\n- Isolate affected RSLinx systems from internet-facing networks and untrusted zones until patching is confirmed.\n- Conduct an emergency scan of all OT\u002FICS environments to identify any other unpatched instances of RSLinx Classic.\n\n**Long-Term Improvements:**\n- Maintain a comprehensive, up-to-date inventory of all OT\u002FICS software assets including version numbers to enable rapid vulnerability identification.\n- Establish a formal OT-specific patch management program with defined SLAs for critical and high-severity vulnerabilities.\n- Implement network segmentation and demilitarized zones (DMZs) to limit direct communication between OT systems and corporate or external networks.\n\n**Detection Measures:**\n- Deploy intrusion detection systems (IDS) tuned for ICS\u002FSCADA protocols to detect exploitation attempts targeting RSLinx.\n- Enable logging on all OT network devices and centralize log collection to a SIEM for anomaly detection and forensic readiness.\n- Subscribe to ICS-CERT and vendor security advisories to receive timely alerts about newly disclosed vulnerabilities in operational technology.",[12,13,14,15,16,17,18,19,20,21],"CIS Control 2: Inventory and Control of Software Assets","CIS Control 7: Continuous Vulnerability Management","CIS Control 12: Network Infrastructure Management","NIST SP 800-82: Guide to ICS Security","NIST CSF ID.AM-2: Software platforms and applications are inventoried","NIST CSF PR.IP-12: A vulnerability management plan is developed and implemented","NIST SI-2: Flaw Remediation","IEC 62443-2-1: Security Management System for IACS","NERC CIP-007-6: Systems Security Management (for energy sector)","ITIL Change Management: Emergency Change procedures for critical patches","published","2026-06-16T18:22:13.04206+00:00","2026-06-16T18:22:12.931+00:00",{"id":7,"url":26,"slug":27,"title":28},"https:\u002F\u002Fwww.cisa.gov\u002Fnews-events\u002Fics-advisories\u002Ficsa-26-167-02","rockwell-automation-rslinx-a532b4","Rockwell Automation RSLinx",[30,36,42],{"id":31,"name":32,"slug":33,"description":34,"color":35},"05757c8d-6b93-4194-b35d-7359e7d33b0e","Vulnerability Management","vulnerability-management","Missing scans, no risk prioritization","#fb923c",{"id":37,"name":38,"slug":39,"description":40,"color":41},"af7fce9e-1ce8-4156-93bc-09dcfbfdf29d","Patch Management","patch-management","Unpatched vulnerabilities, delayed updates","#ef4444",{"id":43,"name":44,"slug":45,"description":46,"color":47},"f43a7f30-5046-4b10-9dba-1a704139821e","Network Segmentation","network-segmentation","Lateral movement, flat networks, missing firewalls","#06b6d4",[]]