Description
Missing Password Field Masking vulnerability in Mitsubishi Electric Corporation EtherNet/IP configuration tools SW1DNN-EIPCT-BD and SW1DNN-EIPCTFX5-BD allows a remote unauthenticated attacker to know the password for MELSEC iQ-R Series EtherNet/IP module RJ71EIP91 and MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP. This vulnerability results in authentication bypass vulnerability, which allows the attacker to access MELSEC iQ-R Series EtherNet/IP module RJ71EIP91 and MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP via FTP.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mitsubishi Electric | EtherNet/IP Configuration tool for RJ71EIP91 SW1DNN-EIPCT-BD | Software version "1.01B" and prior | — |
| Mitsubishi Electric | EtherNet/IP Configuration tool for FX5-ENET/IP SW1DNN-EIPCTFX5-BD | Software version "1.01B" and prior | — |
Advisories 1
- ICSA-23-157-02 Mitsubishi Electric MELSEC iQ-R Series/iQ-F Series (Update C) CISA ICS & IT advisories · Dec 2, 2025
References
- https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2023-004.pdf vendor-advisory
- https://jvn.jp/vu/JVNVU92908006 government-resource
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-157-02 government-resource