How severe is CVE-2023-27858?

CVE-2023-27858 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-27858 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27858?

CVE-2023-27858 affects Rockwellautomation Arena. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-27858?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-27858 published?

CVE-2023-27858 was published on 2023-10-27 and last updated on 2026-06-17.

CVE-2023-27858

CVE-2023-27858 is a high-severity vulnerability in Rockwellautomation Arena with a CVSS 3.x base score of 7.8. 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-824.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-824
Affected product: Rockwellautomation Arena
Published: 2023-10-27
Last modified: 2026-06-17

Description

Rockwell Automation Arena Simulation contains an arbitrary code execution vulnerability that could potentially allow a malicious user to commit unauthorized code to the software by using an uninitialized pointer in the application. The threat-actor could then execute malicious code on the system affecting the confidentiality, integrity, and availability of the product. The user would need to open a malicious file provided to them by the attacker for the code to execute.

Frequently asked questions

What is CVE-2023-27858?: Rockwell Automation Arena Simulation contains an arbitrary code execution vulnerability that could potentially allow a malicious user to commit unauthorized code to the software by using an uninitialized pointer in the application. The threat-actor could then execute malicious code on the system affecting the confidentiality, integrity, and availability of the product. The user would need to open a malicious file provided to them by the attacker for the code to execute.
How severe is CVE-2023-27858?: CVE-2023-27858 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-27858 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27858?: CVE-2023-27858 affects Rockwellautomation Arena. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-27858?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-27858 published?: CVE-2023-27858 was published on 2023-10-27 and last updated on 2026-06-17.

References

https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1141145

Affected products (1)

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

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