Vulnerability Intelligence Report
Rockwell Automation Arena® - Memory Corruption Vulnerability
CVE-2026-8312
A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the expmt.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.
No Active Exploit Signals
CVSS Base Score
7.0
HIGH
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-787 ↗CWE-787 Out-of-bounds write
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Rockwell Auotmation | Arena® Simulation | V17.00.00 and prior (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Rockwell Automation · Vendor · USA |
| Reserved | 2026-05-11T12:39:37 |
| Published | 2026-07-14T12:43:09 |
| Last Updated | 2026-07-14T13:27:53 |
Community Chatter & Buzz