What is CVE-2018-8843?

CVE-2018-8843 is a medium-severity vulnerability in Ics-Cert Rockwell Automation Arena, classified under Use After Free. CVSS score: 5.5/10. Published 2018-05-14.

How severe is CVE-2018-8843?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Use After Free in Ics-Cert Rockwell Automation Arena

CVE-2018-8843

Rockwell Automation Arena versions 15.10.00 and prior contains a use after free vulnerability caused by processing specially crafted Arena Simulation Software files that may cause the software application to crash, potentially losing any unsaved data..

Vulnerability class: Use-After-Free

Published 2018-05-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.020 (79.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: -0.000

Affected products

Ics-Cert Rockwell Automation Arena — versions Arena versions 15.10.00 and prior
Rockwellautomation Arena

Weakness classification (CWE)

CWE-416 — Use After Free

References

www.securityfocus.com/bid/104166 (VDB Entry, Third Party Advisory, vdb-entry)
ics-cert.us-cert.gov/advisories/ICSA-18-130-02 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2018-8843?: CVE-2018-8843 is a medium-severity vulnerability in Ics-Cert Rockwell Automation Arena, classified under Use After Free. CVSS score: 5.5/10. Published 2018-05-14.
How severe is CVE-2018-8843?: Medium severity. CVSS v3 base score is 5.5 out of 10.