Rockwell Arena Simulation Vulnerabilities Enable Remote Attacks

Rockwell Automation has disclosed three high-severity vulnerabilities affecting its Arena Simulation software that could allow attackers to execute arbitrary code on targeted systems.

The vulnerabilities, discovered by security researcher Michael Heinzl and tracked as CVE-2025-7025, CVE-2025-7032, and CVE-2025-7033, affect all Arena Simulation versions 16.20.09 and prior.

The vulnerabilities stem from memory abuse issues that force Arena Simulation to read and write beyond allocated memory boundaries when processing specially crafted files.

Each vulnerability carries a CVSS 4.0 base score of 8.4 out of 10, indicating high severity.

CVE-2025-7025 involves an out-of-bounds read vulnerability (CWE-125) that allows attackers to access memory locations beyond intended boundaries.

CVE-2025-7032 represents a stack-based buffer overflow (CWE-121) where malicious input can overwrite critical stack memory structures.

CVE-2025-7033 constitutes a heap-based buffer overflow (CWE-122) that corrupts dynamically allocated memory, potentially leading to function pointer overwrites.

All three vulnerabilities require user interaction, typically involving opening a malicious file or visiting a compromised webpage.

However, successful exploitation could enable threat actors to execute arbitrary code with the privileges of the user running the software, potentially compromising entire systems.

Rockwell Arena Simulation Vulnerabilities

Arena Simulation is a discrete event simulation and automation software originally developed by Systems Modeling and acquired by Rockwell Automation in 2000.

The software is widely deployed across Fortune 100 companies and critical industries including manufacturing, logistics, and healthcare to model complex operational processes and optimize business decisions.

Michael Heinzl, the security researcher who discovered these vulnerabilities, specializes in industrial control system security and has previously identified over 300 vulnerabilities across 20+ different OT vendors.

Heinzl’s research focuses on fuzzing and manual testing techniques specifically targeting operational technology environments.

The vulnerabilities were found during Rockwell Automation’s internal routine testing and reported proactively as part of the company’s commitment to customer transparency.

This follows a pattern of increasing scrutiny on industrial automation software, with similar memory corruption vulnerabilities recently affecting other simulation and automation platforms.

Immediate Updates Recommended

Rockwell Automation has released Arena Simulation version 16.20.10 and later to address all three vulnerabilities.

The company emphasizes that no workarounds are available, making software updates the only effective mitigation strategy.

For organizations unable to immediately upgrade, Rockwell recommends implementing security best practices including restricting file access, avoiding untrusted files, and applying network segmentation to limit potential attack surfaces.

The vulnerabilities are not currently listed in CISA’s Known Exploited Vulnerabilities database, and no public exploits have been observed.

The disclosure represents part of a broader trend affecting industrial simulation software, with similar buffer overflow vulnerabilities recently identified in other automation platforms.

As manufacturing systems become increasingly digitized and interconnected, security researchers continue to discover critica lvulnerabilities in software that underpins global industrial operations, highlighting the urgent need for proactive cybersecurity measures in operational technology environments.

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