CVE-2018-8834: Omron Cx-Flnet

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Parsing malformed project files in Omron CX-One versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator versions 3.63 and prior, and Switch Box Utility versions 1.68 and prior, may cause a heap-based buffer overflow.

Affected products

• Omron Cx-Flnet: up to and including 1.00
• Omron Cx-One: up to and including 4.42
• Omron Cx-Programmer: up to and including 9.65
• Omron Cx-Protocol: up to and including 1.992
• Omron Cx-Server: up to and including 5.0.22
• Omron Network Configurator: up to and including 3.63
• Omron Switch Box Utility: up to and including 1.68

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