CVE-2024-21920
highpriority · track · 28EPSS 0.002 · 12 %ileEURUUSEPSS · scored 2026-10-27
A memory buffer vulnerability in Rockwell Automation Arena Simulation could potentially let a threat actor read beyond the intended memory boundaries. This could reveal sensitive information and even cause the application to crash, resulting in a denial-of-service condition. To trigger this, the user would unwittingly need to open a malicious file shared by the threat actor.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- MitigationArena Simulation Softwarecisa_csaf_ot
Do not open untrusted files from unknown sources.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.4–7.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-24-086-03Rockwell Automation Arena Simulation2024-03-26icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could crash the application or allow an attacker to run harmful code on the system.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
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