Critical severity9.8NVD Advisory· Published Jun 23, 2020· Updated Jun 17, 2026
CVE-2020-5594
CVE-2020-5594
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7- cpe:2.3:o:mitsubishielectric:melsec-fx_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec-l_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec-q_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-f_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:melsec_iq-r_firmware:*:*:*:*:*:*:*:*
- Range: all versions
Patches
Vulnerability mechanics
References
3- jvn.jp/en/vu/JVNVU91424496/index.htmlnvdThird Party Advisory
- www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-003.pdfnvdVendor Advisory
- www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-003_en.pdfnvdVendor Advisory
News mentions
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