CVE-2020-12739: Fanuc Power Motion I-Model A Firmware

Medium severity, CVSS 5.3. EPSS: 1.9% chance of exploitation in the next 30 days.

A denial-of-service vulnerability in the Fanuc i Series CNC (0i-MD and 0i Mate-MD) could allow an unauthenticated, remote attacker to cause an affected CNC to become inaccessible to other devices.

Affected products

• Fanuc Power Motion I-Model A Firmware: affected versions not specified
• Fanuc Series 0i-Mate D Firmware: affected versions not specified
• Fanuc Series 0i-Model B Firmware: affected versions not specified
• Fanuc Series 0i-Model C Firmware: affected versions not specified
• Fanuc Series 0i-Model D Firmware: affected versions not specified
• Fanuc Series 0i-Model F Firmware: affected versions not specified
• Fanuc Series 0i-Model F Plus Firmware: affected versions not specified
• Fanuc Series 16i Firmware: affected versions not specified
• Fanuc Series 18i-Wb Firmware: affected versions not specified
• Fanuc Series 18i Firmware: affected versions not specified
• Fanuc Series 21i-Model B Firmware: affected versions not specified
• Fanuc Series 30i Firmware: affected versions not specified
• Fanuc Series 31i Firmware: affected versions not specified
• Fanuc Series 32i-B Plus Firmware: affected versions not specified
• Fanuc Series 32i-Model A Firmware: affected versions not specified
• Fanuc Series 35i-B Firmware: affected versions not specified

Published 2020-08-03. Last modified 2026-06-17.