Vulnerability · Published Jul 14, 2026 · Assigned by Rockwell

CVE-2026-8313Rockwell Automation Arena® - Memory Corruption Vulnerability

High 7.0

In plain English

A high-severity out-of-bounds write in Arena® Simulation from Rockwell Automation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 4.0)7.0High

Exploit odds (30 days)0.3%top 81.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the linker.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 (as reported)

Vendor	Product	Versions
Rockwell Automation	Arena® Simulation	V17.00.00 and prior

Weakness: CWE-787 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

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