Rockwell Automation Arena Simulation Siman linker.exe out-of-bounds write

Summaryinfo

A vulnerability identified as problematic has been detected in Rockwell Automation Arena Simulation. This affects an unknown part of the file linker.exe of the component Siman. Performing a manipulation results in out-of-bounds write. This vulnerability was named CVE-2026-8313. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Rockwell Automation Arena Simulation (affected version not known). It has been classified as problematic. This affects some unknown functionality of the file linker.exe of the component Siman. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the linker.exe (Siman) component. The vulnerability stems from improper validation of user-supplied data, which can result in an out-of-bounds write. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process by convincing a user to open a malicious file.

It is possible to read the advisory at rockwellautomation.com. This vulnerability is uniquely identified as CVE-2026-8313 since 05/11/2026. The exploitability is told to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/14/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Automation Software

Vendor

• Rockwell Automation

Name

• Arena Simulation

License

• commercial

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