Improper restriction of XML external entity reference (XXE) vulnerability in OMRON CX-Motion Pro


CX-Motion Pro provided by OMRON Corporation contains an improper restriction of XML external entity reference (XXE) vulnerability (CWE-611).

Michael Heinzl reported this vulnerability to JPCERT/CC.
JPCERT/CC coordinated with the developer.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 5.5 (Medium) [Other]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None
Affected Products

OMRON Corporation
  • CX-Motion Pro and earlier


If a user opens a specially crafted project file created by an attacker, sensitive information in the file system where CX-Motion Pro is installed may be disclosed.

[Update the software]
Update the software to the latest version according to the information provided by the developer.
The developer provides the below version that contains a fix for this vulnerability through its CX-Motion Pro Auto-Update service.

* CX-Motion Pro
Vendor Information

OMRON Corporation
CWE (What is CWE?)

  1. Improper Restriction of XML External Entity Reference ('XXE')(CWE-611) [Other]
CVE (What is CVE?)

  1. CVE-2023-22322

  1. JVN : JVNVU#94200979
Revision History

  • [2023/01/25]
      Web page was published