Is CVE-2026-8314 actively exploited?

No active exploitation of CVE-2026-8314 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-8314 be exploited remotely?

No. CVE-2026-8314 requires local access to exploit.

What is the CVSS score of CVE-2026-8314?

CVE-2026-8314 has a CVSS score of 7.3 (HIGH).

HOME VULNERABILITIESCVE-2026-8314

HIGH

CVE-2026-8314

CWE-787Published: July 14, 2026· Updated: Jul 15, 2026

7.3

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2026-8314 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.3.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.Low

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

rockwellautomation1 product(s)

arena

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Exploit-DB

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

PacketStorm

Security advisories & exploits

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1784.html

News & Research Mentioning CVE-2026-8314

Rockwell Automation Arena

CISA Alerts· Jul 16, 2026

View CSAF Summary Successful exploitation these vulnerabilities could allow an attacker to execute arbitrary code in the context of the current process. The following versions of Rockwell Automation Arena are affected: Arena <=V17.00.00 (CVE-2026-8085, CVE-2026-8312, CVE-2026-8313, CVE-2026-8314) CVSS Vendor Equipment Vulnerabilities v3 7.8 Rockwell Automation Rockwell Automation Arena Out-of-bounds Write Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-8085 A security issue exists within Arena Simulation due to a memory corruption vulnerability in the model.exe (Siman) component. The vulnerability stems from improp [xlite_meta score:79 src:CISA Alerts xlite_fp:9e199303d25487b504c5940a224db49c4a8d16cd7260cee71af2ef54535767f5]