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Cx DesignerApplication · Omrom

CVE-2023-43624

MEDIUM · 5.5 CVSS v3.1 Published 2023-10-23
Fix available
A fix is available. Upgrade to after 3.740 or later.
See remediation →
58/100
Remediation priority · Elevated
No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
CX-Designer Ver.3.740 and earlier (included in CX-One CXONE-AL[][]D-V4) contains an improper restriction of XML external entity reference (XXE) vulnerability. If a user opens a specially crafted project file created by an attacker, sensitive information in the file system where CX-Designer is installed may be disclosed.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

CX-Designer versions 3.740 and earlier contain an XXE vulnerability in project file parsing. When a user opens a specially crafted malicious project file, the XML parser processes external entity references, allowing the attacker to read sensitive files from the local file system where the application is installed.

MitigationUsers should not open project files from untrusted sources. Organizations should update to a patched version when released by Omron and implement file origin policies to block opening of files from unknown or untrusted sources.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Cx DesignerApplication
Affected:<= 3.740

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Omron CX-Designer is installed
    Check for CX-Designer in the list of installed applications on the system. Common installation paths may include Program Files or Program Files (x86) directories, or use system inventory tools to list installed software.
    Affected if CX-Designer is present on the system and has a version <= 3.740
  2. Determine the installed CX-Designer version
    Locate the CX-Designer installation directory and check version information. The version is typically found in the application executable properties, or check the Windows registry under the CX-Designer installation key for version details.
    Affected if The installed version is 3.740 or any version lower than 3.740
  3. Verify project file parsing functionality
    Confirm that CX-Designer can open project files (.cxd or similar project file extensions used by CX-Designer). The XXE vulnerability is triggered during the parsing of these XML-based project files.
    Affected if The application has the ability to open and parse project files, which is standard functionality in CX-Designer
  4. Assess file handling configuration
    Review any available settings related to XML parsing or external entity processing in CX-Designer. Note that the XXE vulnerability exists in the XML parser used for project files regardless of configuration.
    Affected if The XML parser processes project files without disabling external entity resolution, which is the default behavior in affected versions

The environment is affected if Omron CX-Designer version 3.740 or earlier is installed and can open project files, as the vulnerable XML parser processes external entity references in malicious project files.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 3.740
Interim mitigation

Users should not open project files from untrusted sources. Organizations should update to a patched version when released by Omron and implement file origin policies to block opening of files from unknown or untrusted sources.

Recommended fix Moderate confidence

CX-Designer Ver.3.741 or later (within CX-One CXONE-AL[][]D-V4 or later)

  1. 1. Navigate to the official Omron support website (www.fa.omron.co.jp) or the CX-One download page
  2. 2. Locate the CX-Designer component within the CX-One suite
  3. 3. Download the latest version of CX-Designer (Ver.3.741 or later)
  4. 4. Uninstall the current version of CX-Designer from the system
  5. 5. Install the downloaded updated version of CX-Designer
  6. 6. Verify the installation by checking the version number in the CX-Designer about section
  7. 7. Ensure project files are only opened from trusted sources to mitigate remaining attack vectors
Caveat The upgrade within the same major version line should be low-risk; ensure compatibility with existing project files and any custom scripts

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Cx Designer Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA3.0 h
25.0 hours of engineering $4,400
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-43624 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data