CVE-2025-7033 is a heap-based buffer overflow vulnerability classified under CWE-122 affecting Rockwell Automation Arena® Simulation software versions 16.20.09 and prior. The vulnerability occurs due to improper bounds checking when Arena Simulation processes custom input files, allowing an attacker to cause the application to read and write beyond the allocated heap memory. This memory corruption can be leveraged to execute arbitrary code with the privileges of the user running the application or to disclose sensitive information from memory. Exploitation requires user interaction, such as opening a maliciously crafted file or visiting a compromised webpage that delivers such a file. The vulnerability does not require authentication or elevated privileges, increasing its risk profile. The CVSS 4.0 vector indicates local attack vector (AV:L), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:A), and high impact on confidentiality, integrity, and availability (VC:H/VI:H/VA:H). No patches or official mitigations have been published yet, and no known exploits are reported in the wild. Rockwell Automation Arena® Simulation is widely used in industrial and manufacturing sectors for process simulation, making this vulnerability particularly concerning for organizations relying on this software for operational planning and analysis.

Successful exploitation of this vulnerability can lead to arbitrary code execution, allowing attackers to run malicious code within the context of the affected application. This could result in full system compromise if the user has administrative privileges or access to critical systems. Additionally, information disclosure could expose sensitive simulation data or intellectual property. The integrity and availability of simulation processes could be disrupted, potentially impacting operational decision-making and industrial process planning. Given the software's role in industrial automation simulation, exploitation could indirectly affect industrial control systems if attackers gain footholds through compromised simulation environments. The requirement for user interaction limits remote exploitation but does not eliminate risk, especially in environments where users frequently open simulation files from external sources. The lack of patches increases exposure time, and organizations may face operational and reputational damage if exploited.

Organizations should immediately restrict the use of Arena® Simulation to trusted files and sources, implementing strict file validation and scanning for malicious content before opening. Employ application whitelisting and sandboxing techniques to isolate the simulation software from critical systems and limit the impact of potential exploitation. Educate users about the risks of opening untrusted files or links related to simulation software. Monitor network and host systems for unusual behavior indicative of exploitation attempts, such as unexpected process activity or memory anomalies. Until an official patch is released, consider deploying virtualized or isolated environments for running Arena Simulation to contain potential attacks. Engage with Rockwell Automation support channels to obtain updates and advisories. Implement robust backup and recovery procedures to mitigate the impact of potential data corruption or loss. Finally, review and tighten endpoint security controls and privilege management to reduce the attack surface.