7.3

CVE-2026-8085: rockwell automation arena simulation Out-of-bounds Write

CVSS: 7.3v3.1HighAnalyzed
Published 14-07-2026Last modified 14-07-2026
Open JSON

Vulnerability summary

CVE-2026-8085 is a high (CVSS 7.3) Out-of-bounds Write vulnerability in rockwell automation arena simulation. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.3% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v3.1 (NVD)
EPSS score
0.27%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-07-2026
    PublishedVulnerability first disclosed.
  2. 14-07-2026
    Last modifiedVulnerability information updated.

Description

A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the model.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 metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

+0.02 pp

From 0.24% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Rockwell automation1 product
Rockwellautomation1 product

2 vendors · 2 products

References

1 links