CVE-2022-33323: Mitsubishielectric Rh-12fh55 Firmware

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

Active Debug Code vulnerability in robot controller of Mitsubishi Electric Corporation industrial robot MELFA SD/SQ Series and MELFA F-Series allows a remote unauthenticated attacker to gain unauthorized access by authentication bypass through an unauthorized telnet login. As for the affected model names, controller types and firmware versions, see the Mitsubishi Electric's advisory which is listed in [References] section.

Affected products

• Mitsubishielectric Rh-12fh55 Firmware: affected versions not specified
• Mitsubishielectric Rh-12fh70 Firmware: affected versions not specified
• Mitsubishielectric Rh-12fh85 Firmware: affected versions not specified
• Mitsubishielectric Rh-12sdh55 Firmware: affected versions not specified
• Mitsubishielectric Rh-12sdh70 Firmware: affected versions not specified
• Mitsubishielectric Rh-12sdh85 Firmware: affected versions not specified
• Mitsubishielectric Rh-12sqh55 Firmware: affected versions not specified
• Mitsubishielectric Rh-12sqh70 Firmware: affected versions not specified
• Mitsubishielectric Rh-12sqh85 Firmware: affected versions not specified
• Mitsubishielectric Rh-20fh100 Firmware: affected versions not specified
• Mitsubishielectric Rh-20fh85 Firmware: affected versions not specified
• Mitsubishielectric Rh-20sdh100 Firmware: affected versions not specified
• Mitsubishielectric Rh-20sdh85 Firmware: affected versions not specified
• Mitsubishielectric Rh-20sqh85 Firmware: affected versions not specified
• Mitsubishielectric Rh-3fh35 Firmware: affected versions not specified
• Mitsubishielectric Rh-3fh45 Firmware: affected versions not specified
• Mitsubishielectric Rh-3fh55 Firmware: affected versions not specified
• Mitsubishielectric Rh-3sdhr Firmware: affected versions not specified
• Mitsubishielectric Rh-3sqhr Firmware: affected versions not specified
• Mitsubishielectric Rh-6fh35 Firmware: affected versions not specified
• Mitsubishielectric Rh-6fh45 Firmware: affected versions not specified
• Mitsubishielectric Rh-6fh55 Firmware: affected versions not specified
• Mitsubishielectric Rh-6sdh35 Firmware: affected versions not specified
• Mitsubishielectric Rh-6sdh45 Firmware: affected versions not specified
• Mitsubishielectric Rh-6sdh55 Firmware: affected versions not specified
• and 26 more

Published 2023-02-02. Last modified 2026-06-17.