Buffer overflow in Rockwell Automation Arena® Simulation

CVE-2026-8314

A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the siman.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.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (13.6th percentile) — read the EPSS interpretation.