CVE-2023-38747

Arbitrary code execution via crafted CXP file

Published Aug 3, 2023 · Updated Oct 21, 2024

Heap-based buffer overflow in OMRON CX-Programmer 9.80 and earlier allows local users to execute arbitrary code via a crafted CXP file. OMRON has not disclosed the affected parser or the length or bounds error that overflows heap memory while processing the file. Opening the file is required, and successful exploitation can also disclose information or compromise the application process.

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 OMRON CX-Programmer 9.80 and earlier allows local users to execute arbitrary code via a crafted CXP file. OMRON has not disclosed the affected parser or the length or bounds error that overflows heap memory while processing the file. Opening the file is required, and successful exploitation can also disclose information or compromise the application process.

The record

CVE
CVE-2023-38747
Published
Aug 3, 2023
Updated
Oct 21, 2024
Vendor
OMRON Corporation
Product
CX-Programmer
Classifications
CWE-787, CWE-122, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 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=Included in CX-One CXONE-AL[][]D-V4 V9.80 and earlier

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

OMRON Corporation · CX-Programmerversion=Included in CX-One CXONE-AL[][]D-V4 V9.80 and earlier

Published CVSS scores

7.8OMRON CorporationCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS: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-787Out-of-bounds Write
CWE-122Heap-based Buffer Overflow
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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