What’s Vulnerable › Vulnerabilities

CVE-2023-2061: Authentication bypass vulnerability in MELSEC iQ-R Series / iQ-F Series EtherNet/IP Modules

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-02 · updated 2026-06-17
• Weakness: CWE-259

Description

Use of Hard-coded Password vulnerability in FTP function on Mitsubishi Electric Corporation MELSEC iQ-R Series EtherNet/IP module RJ71EIP91 and MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP allows a remote unauthenticated attacker to obtain a hard-coded password and access to the module via FTP.

Affected products

• Mitsubishielectric Fx5-Enet/Ip Firmware: all versions
• Mitsubishielectric Rj71Eip91 Firmware: all versions
• Mitsubishielectric Sw1Dnn-Eipct-Bd Firmware: all versions
• Mitsubishielectric Sw1Dnn-Eipctfx5-Bd Firmware: all versions

References

• https://jvn.jp/vu/JVNVU92908006
• https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2023-004.pdf
• https://jvn.jp/vu/JVNVU92908006
• https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2023-004.pdf

Get alerted when CVE-2023-2061 or the next vulnerability affects your stack