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.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_misc
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-003_en.pdf
Vendor Advisory x_refsource_misc
https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-003.pdf
Third Party Advisory x_refsource_misc
https://jvn.jp/en/vu/JVNVU91424496/index.html
Scores
CVSS v3
9.8
EPSS
0.0033
EPSS Percentile
56.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-319
Status
published
Products (5)
mitsubishielectric/melsec-fx_firmware
mitsubishielectric/melsec-l_firmware
mitsubishielectric/melsec-q_firmware
mitsubishielectric/melsec_iq-f_firmware
mitsubishielectric/melsec_iq-r_firmware
Published
Jun 23, 2020
Tracked Since
Feb 18, 2026