CVE-2018-18993: Omron Cx-One

High severity, CVSS 7.8. EPSS: 1.8% chance of exploitation in the next 30 days.

Two stack-based buffer overflow vulnerabilities have been discovered in CX-One Versions 4.42 and prior (CX-Programmer Versions 9.66 and prior and CX-Server Versions 5.0.23 and prior). When processing project files, the application allows input data to exceed the buffer. An attacker could use a specially crafted project file to overflow the buffer and execute code under the privileges of the application.

Affected products

• Omron Cx-One: up to and including 4.42
• Omron Cx-Programmer: up to and including 9.66
• Omron Cx-Server: up to and including 5.0.23

Published 2018-12-04. Last modified 2026-06-17.