Access of uninitialized pointer vulnerability in OMRON CX-Motion-MCH


CX-Motion-MCH provided by OMRON Corporation contains an access of uninitialized pointer vulnerability (CWE-824, CVE-2023-22366).

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

CVSS V3 Severity:
Base Metrics 7.8 (High) [Other]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
Affected Products

OMRON Corporation
  • CX-Motion-MCH v2.32 and earlier


Having a user to open a specially crafted project file may lead to information disclosure and/or arbitrary code execution.

[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-MCH Auto-Update service.

* CX-Motion-MCH v2.33
Vendor Information

OMRON Corporation
CWE (What is CWE?)

  1. Access of Uninitialized Pointer(CWE-824) [Other]
CVE (What is CVE?)

  1. CVE-2023-22366

  1. JVN : JVNVU#91744508
Revision History

  • [2023/01/12]
      Web page was published