How severe is CVE-2018-8843?

CVE-2018-8843 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-8843 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8843?

CVE-2018-8843 affects Rockwellautomation Arena. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8843?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-8843 published?

CVE-2018-8843 was published on 2018-05-14 and last updated on 2026-06-17.

CVE-2018-8843

CVE-2018-8843 is a medium-severity vulnerability in Rockwellautomation Arena with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Rockwellautomation Arena
Published: 2018-05-14
Last modified: 2026-06-17

Description

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..

Frequently asked questions

What is 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..
How severe is CVE-2018-8843?: CVE-2018-8843 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-8843 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8843?: CVE-2018-8843 affects Rockwellautomation Arena. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8843?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-8843 published?: CVE-2018-8843 was published on 2018-05-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rockwellautomation:arena:*:*:*:*:*:*:*:*

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