CVE-2024-21919

Arbitrary code execution via uninitialized pointer

Published Mar 26, 2024 · Updated Aug 2, 2024

Memory corruption in Rockwell Automation Arena Simulation 16.00 through 16.20.02 allows attackers to execute code via a malicious file. The application passes an uninitialized pointer through unspecified memory-handling paths, allowing attacker-controlled data to drive undefined behavior. Exploitation requires a user to open the supplied corrupted file; successful code runs in the Arena process and can affect system confidentiality, integrity, and availability.

CVSS severity7.8
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Rockwell Automation Arena Simulation 16.00 through 16.20.02 allows attackers to execute code via a malicious file. The application passes an uninitialized pointer through unspecified memory-handling paths, allowing attacker-controlled data to drive undefined behavior. Exploitation requires a user to open the supplied corrupted file; successful code runs in the Arena process and can affect system confidentiality, integrity, and availability.

The record

CVE
CVE-2024-21919
Published
Mar 26, 2024
Updated
Aug 2, 2024
Vendor
Rockwell Automation
Product
Arena Simulation
Classifications
CWE-824, CAPEC-100, T1204.002, T1203
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=16.00.00 <=16.20.02
  2. Affected versionversion=Version 16.00 - 16.20.02

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Rockwell Automation · Arena Simulationversion=16.00.00 <=16.20.02; version=Version 16.00 - 16.20.02

Published CVSS scores

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-824Access of Uninitialized Pointer
CAPEC-100Overflow Buffers
T1204.002Malicious File
T1203Exploitation for Client Execution

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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