CVE-2023-22357: Omron CP1L-EL20DR-D Firmware

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

Active debug code exists in OMRON CP1L-EL20DR-D all versions, which may lead to a command that is not specified in FINS protocol being executed without authentication. A remote unauthenticated attacker may read/write in arbitrary area of the device memory, which may lead to overwriting the firmware, causing a denial-of-service (DoS) condition, and/or arbitrary code execution.

Affected products

• Omron CP1L-EL20DR-D Firmware: any version

Published 2023-01-17. Last modified 2026-06-17.