Vulnerability · Published Jun 23, 2020 · Assigned by jpcert
CVE-2020-5594
Critical 9.8
In plain English
A critical-severity security flaw in MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules from Mitsubishi Electric Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)1.3%top 29.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mitsubishi Electric Corporation | MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules | all versions |
References
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-003_en.pdf x_refsource_MISC
- https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-003.pdf x_refsource_MISC
- https://jvn.jp/en/vu/JVNVU91424496/index.html x_refsource_MISC