CWE
319
Advisory Published
Updated

CVE-2020-5594

First published: Tue Jun 23 2020(Updated: )

Mitsubishi Electric MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules all versions contain a vulnerability that allows cleartext transmission of sensitive information between CPU modules and GX Works3 and/or GX Works2 via unspecified vectors.

Credit: vultures@jpcert.or.jp

Affected SoftwareAffected VersionHow to fix
Mitsubishi Electric Melsec IQ-R Firmware
Mitsubishi Electric Melsec Iq-r
Mitsubishi Electric MELSEC-iQ-F
Mitsubishi Electric MELSEC-iQ-F
Mitsubishi Electric Melsec-Q Firmware
Mitsubishi Electric Melsec-Q
Mitsubishi Electric Melsec-L Firmware
Mitsubishi Electric Melsec-L Firmware
Mitsubishi Electric Melsec-FX Firmware
Mitsubishi Electric Melsec-FX Firmware

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Frequently Asked Questions

  • What is the severity of CVE-2020-5594?

    CVE-2020-5594 is classified as a medium severity vulnerability due to the cleartext transmission of sensitive information.

  • How do I fix CVE-2020-5594?

    To mitigate CVE-2020-5594, ensure secure transmission methods are implemented between the CPU modules and GX Works3 or GX Works2.

  • What types of devices are affected by CVE-2020-5594?

    CVE-2020-5594 affects Mitsubishi Electric MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules.

  • What is at risk due to CVE-2020-5594?

    CVE-2020-5594 potentially exposes sensitive information transmitted in cleartext between control modules and software.

  • Is there a specific version of the firmware affected by CVE-2020-5594?

    All versions of the affected Mitsubishi Electric MELSEC firmware are compromised by CVE-2020-5594.

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