CVE-2022-25155: Mitsubishielectric FX5UC-32mr/ds-Ts Firmware

High severity, CVSS 8.1. EPSS: 2.1% chance of exploitation in the next 30 days.

Use of Password Hash Instead of Password for Authentication vulnerability in Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU all versions, Mitsubishi Electric MELSEC iQ-F series FX5UJ CPU all versions, Mitsubishi Electric MELSEC iQ-R series R00/01/02CPU all versions, Mitsubishi Electric MELSEC iQ-R series R04/08/16/32/120(EN)CPU all versions, Mitsubishi Electric MELSEC iQ-R series R08/16/32/120SFCPU all versions, Mitsubishi Electric MELSEC iQ-R series R08/16/32/120PCPU all versions, Mitsubishi Electric MELSEC iQ-R series R08/16/32/120PSFCPU all versions, Mitsubishi Electric MELSEC iQ-R series RJ71GN11-T2 all versions, Mitsubishi Electric MELSEC iQ-R series RJ71GN11-EIP all versions, Mitsubishi Electric MELSEC iQ-R series RJ71C24(-R2/R4) all versions, Mitsubishi Electric MELSEC iQ-R series RJ71EN71 all versions, Mitsubishi Electric MELSEC iQ-R series RJ72GF15-T2 all versions, Mitsubishi Electric MELSEC Q series Q03UDECPU all versions, Mitsubishi Electric MELSEC Q series Q04/06/10/13/20/26/50/100UDEHCPU all versions, Mitsubishi Electric MELSEC Q series Q03/04/06/13/26UDVCPU all versions, Mitsubishi Electric MELSEC Q series Q04/06/13/26UDPVCPU all versions, Mitsubishi Electric MELSEC Q series QJ71C24N(-R2/R4) all versions, Mitsubishi Electric MELSEC Q series QJ71E71-100 all versions, Mitsubishi Electric MELSEC Q series QJ72BR15 all versions, Mitsubishi Electric MELSEC Q series QJ72LP25(-25/G/GE) all versions, Mitsubishi Electric MELSEC L series L02/06/26CPU(-P) all versions, Mitsubishi Electric MELSEC L series L26CPU-(P)BT all versions, Mitsubishi Electric MELSEC L series LJ71C24(-R2) all versions, Mitsubishi Electric MELSEC L series LJ71E71-100 all versions and Mitsubishi Electric MELSEC L series LJ72GF15-T2 all versions allows a remote unauthenticated attacker to login to the product by replaying an eavesdropped password hash.

Affected products

• Mitsubishielectric FX5UC-32mr/ds-Ts Firmware: affected versions not specified
• Mitsubishielectric FX5UC-32mt/d Firmware: affected versions not specified
• Mitsubishielectric FX5UC-32mt/ds-Ts Firmware: affected versions not specified
• Mitsubishielectric FX5UC-32mt/dss-Ts Firmware: affected versions not specified
• Mitsubishielectric FX5UC-32mt/dss Firmware: affected versions not specified
• Mitsubishielectric FX5UC Firmware: affected versions not specified
• Mitsubishielectric FX5UJ-24mr/es Firmware: affected versions not specified
• Mitsubishielectric FX5UJ-24mt/es Firmware: affected versions not specified
• Mitsubishielectric FX5UJ-24mt/ess Firmware: affected versions not specified
• Mitsubishielectric FX5UJ-40mr/es Firmware: affected versions not specified
• Mitsubishielectric FX5UJ-40mt/es Firmware: affected versions not specified
• Mitsubishielectric FX5UJ-40mt/ess Firmware: affected versions not specified
• Mitsubishielectric FX5UJ-60mr/es Firmware: affected versions not specified
• Mitsubishielectric FX5UJ-60mt/es Firmware: affected versions not specified
• Mitsubishielectric FX5UJ-60mt/ess Firmware: affected versions not specified
• Mitsubishielectric FX5UJ Firmware: affected versions not specified

Published 2022-04-01. Last modified 2026-06-17.