What’s Vulnerable › Vulnerabilities

CVE-2023-2060: 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: 0.8% 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-521

Description

Weak Password Requirements 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 access to the module via FTP by dictionary attack or password sniffing.

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

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