CVE-2024-21918
CVE-2024-21918 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-416.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-19524
- Weakness: CWE-416
- Affected product: Rockwellautomation Arena
- Published:
- Last modified:
Description
A memory buffer vulnerability in Rockwell Automation Arena Simulation software could potentially allow a malicious user to insert unauthorized code to the software by corrupting the memory and triggering an access violation. 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-2024-21918?
- A memory buffer vulnerability in Rockwell Automation Arena Simulation software could potentially allow a malicious user to insert unauthorized code to the software by corrupting the memory and triggering an access violation. 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-2024-21918?
- CVE-2024-21918 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-2024-21918 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-21918?
- CVE-2024-21918 affects Rockwellautomation Arena. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-21918?
- 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-2024-21918 have an EU (EUVD) identifier?
- Yes. CVE-2024-21918 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19524.
- When was CVE-2024-21918 published?
- CVE-2024-21918 was published on 2024-03-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:rockwellautomation:arena:*:*:*:*:*:*:*:*
More vulnerabilities in Rockwellautomation Arena
- CVE-2025-7033 — High (CVSS 7.8): A memory abuse issue exists in the Rockwell Automation Arena® Simulation. A custom file can force Arena Simulation to…
- CVE-2025-7032 — High (CVSS 7.8): A memory abuse issue exists in the Rockwell Automation Arena® Simulation. A custom file can force Arena Simulation to…
- CVE-2025-7025 — High (CVSS 7.8): A memory abuse issue exists in the Rockwell Automation Arena® Simulation. A custom file can force Arena Simulation to…
- CVE-2025-6377 — High (CVSS 7.8): A remote code execution security issue exists in the Rockwell Automation Arena®. A crafted DOE file can force…
- CVE-2025-6376 — High (CVSS 7.8): A remote code execution security issue exists in the Rockwell Automation Arena®. A crafted DOE file can force…
- CVE-2025-3289 — High (CVSS 7.8): A local code execution vulnerability exists in the Rockwell Automation Arena® due to a stack-based memory buffer…
All CVEs affecting Rockwellautomation Arena →
Other CWE-416 (Use After Free) vulnerabilities
- CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
- CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
- CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
- CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
- CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
- CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…