CVE-2024-21913

Code execution via heap buffer overflow

Published Mar 26, 2024 · Updated Aug 2, 2024

Heap-based buffer overflow in Rockwell Automation Arena Simulation 16.00 through 16.20.02 allows attackers to execute code via a malicious file. Rockwell Automation has not identified the affected file parser or disclosed how crafted file content causes the out-of-bounds heap write. Exploitation requires a user to open the attacker-supplied file, after which code runs in the application user's context and the application can crash.

CVSS severity7.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Rockwell Automation Arena Simulation 16.00 through 16.20.02 allows attackers to execute code via a malicious file. Rockwell Automation has not identified the affected file parser or disclosed how crafted file content causes the out-of-bounds heap write. Exploitation requires a user to open the attacker-supplied file, after which code runs in the application user's context and the application can crash.

The record

CVE
CVE-2024-21913
Published
Mar 26, 2024
Updated
Aug 2, 2024
Vendor
Rockwell Automation
Product
Arena Simulation Software
Classifications
CWE-122, CWE-787, CAPEC-100, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=16.00 <=16.20.02

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Rockwell Automation · Arena Simulation Softwareversion=16.00 <=16.20.02
Rockwell Automation · Arena Simulationversion=Version 16.00 - 16.20.02

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8Rockwell AutomationCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
CAPEC-100Overflow Buffers
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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