How severe is CVE-2024-21919?

CVE-2024-21919 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-2024-21919 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21919?

CVE-2024-21919 affects Rockwellautomation Arena. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21919?

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.

Does CVE-2024-21919 have an EU (EUVD) identifier?

Yes. CVE-2024-21919 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19525.

When was CVE-2024-21919 published?

CVE-2024-21919 was published on 2024-03-26 and last updated on 2026-06-17.

CVE-2024-21919

CVE-2024-21919 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% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19525
Weakness: CWE-824
Affected product: Rockwellautomation Arena
Published: 2024-03-26
Last modified: 2026-06-17

Description

An uninitialized pointer in Rockwell Automation Arena Simulation software could potentially allow a malicious user to insert unauthorized code to the software by leveraging the pointer after it is properly. Once inside, the threat actor can run harmful code on the system. This affects the confidentiality, integrity, and availability of the product. To trigger this, the user would unwittingly need to open a malicious file shared by the threat actor.

Frequently asked questions

What is CVE-2024-21919?: An uninitialized pointer in Rockwell Automation Arena Simulation software could potentially allow a malicious user to insert unauthorized code to the software by leveraging the pointer after it is properly. Once inside, the threat actor can run harmful code on the system. This affects the confidentiality, integrity, and availability of the product. To trigger this, the user would unwittingly need to open a malicious file shared by the threat actor.
How severe is CVE-2024-21919?: CVE-2024-21919 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-2024-21919 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21919?: CVE-2024-21919 affects Rockwellautomation Arena. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21919?: 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.
Does CVE-2024-21919 have an EU (EUVD) identifier?: Yes. CVE-2024-21919 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19525.
When was CVE-2024-21919 published?: CVE-2024-21919 was published on 2024-03-26 and last updated on 2026-06-17.

References

https://www.rockwellautomation.com/en-us/support/advisory.SD-1665.html

Affected products (1)

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

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