CVE-2026-8314: Rockwellautomation Arena

High severity, CVSS 7.3. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Rockwellautomation Arena: before 17.00.01 (fixed in 17.00.01)

Published 2026-07-14. Last modified 2026-07-15.