Rockwell Automation Arena
Plan Patch7.8ICS-CERT ICSA-25-219-04Aug 7, 2025
Attack VectorLocal
Auth RequiredNone
ComplexityLow
User InteractionRequired
Summary
Rockwell Automation Arena contains memory corruption vulnerabilities (CWE-125, CWE-121, CWE-122) that could allow disclosure of sensitive information and arbitrary code execution. These vulnerabilities require local access to a machine running Arena and user interaction to trigger exploitation. Arena versions 16.20.09 and earlier are affected.
What this means
What could happen
An attacker with local access to a machine running Arena could read sensitive data or run arbitrary code to alter simulation models, engineering configurations, or downstream process decisions based on Arena outputs.
Who's at risk
Rockwell Automation Arena users who run the software on engineering workstations for simulation, process modeling, and factory design. This includes manufacturing plants, utilities, and any discrete or process industry using Arena for production planning or analysis.
How it could be exploited
An attacker must have local access to a workstation running Arena (not remotely exploitable). The attacker can trigger arbitrary code execution through user interaction (e.g., opening a malicious file or project), leading to disclosure of sensitive information or code execution within the Arena process context.
Prerequisites
- Local access to a machine running Arena
- User interaction required (e.g., opening a file or project)
- Arena version 16.20.09 or earlier
Requires local access to exploitUser interaction requiredAffects engineering/planning tools (not direct control systems)No public exploitation reportedPatch available from vendor
Exploitability
Low exploit probability (EPSS 0.0%)
Affected products (1)
ProductAffected VersionsFix Status
Arena: <=16.20.09≤ 16.20.0916.20.10
Remediation & Mitigation
0/4
Do now
0/1HARDENINGEducate users on the risk of opening untrusted Arena project files or models from external sources
Schedule — requires maintenance window
0/1Patching may require device reboot — plan for process interruption
HOTFIXUpdate Rockwell Automation Arena to version 16.20.10 or later
Long-term hardening
0/2HARDENINGRestrict local access to engineering workstations running Arena; enforce user access controls and audit workstation login logs
HARDENINGImplement network segmentation to isolate engineering workstations from the business network and the Internet
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