CVE-2026-8314: CWE-787 Out-of-bounds write in Rockwell Automation Arena® Simulation
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-8314) in Arena® Simulation arises from a CWE-787 out-of-bounds write due to improper validation of user input in the siman.exe component. The flaw allows an attacker to execute arbitrary code by tricking a user into opening a crafted malicious file. The CVSS 4.0 base score is 7.0, indicating high severity, with local attack vector, low attack complexity, and requiring user interaction with limited privileges. No official remediation or patch information is currently available.
Potential Impact
Successful exploitation can lead to arbitrary code execution within the context of the current user process, potentially compromising the affected system. The attack requires local access and user interaction (opening a malicious file). There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should exercise caution when opening files from untrusted sources and follow any guidance issued by Rockwell Automation.
CVE-2026-8314: CWE-787 Out-of-bounds write in Rockwell Automation Arena® Simulation
Description
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.
CVSS v4.0
Score 7.0high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-8314) in Arena® Simulation arises from a CWE-787 out-of-bounds write due to improper validation of user input in the siman.exe component. The flaw allows an attacker to execute arbitrary code by tricking a user into opening a crafted malicious file. The CVSS 4.0 base score is 7.0, indicating high severity, with local attack vector, low attack complexity, and requiring user interaction with limited privileges. No official remediation or patch information is currently available.
Potential Impact
Successful exploitation can lead to arbitrary code execution within the context of the current user process, potentially compromising the affected system. The attack requires local access and user interaction (opening a malicious file). There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should exercise caution when opening files from untrusted sources and follow any guidance issued by Rockwell Automation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Rockwell
- Date Reserved
- 2026-05-11T12:40:00.178Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a56374568715ace438e9d4c
Added to database: 07/14/2026, 13:19:01 UTC
Last enriched: 07/14/2026, 13:32:31 UTC
Last updated: 07/14/2026, 14:07:34 UTC
Views: 4
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