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Fencer Intel
critical 9.8

CVE-2020-12007 json

A specially crafted communication packet sent to the affected devices could allow remote code execution and a denial-of-service condition d…

published 6y ago modified 4mo ago also EUVD-2020-4323

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

A specially crafted communication packet sent to the affected devices could allow remote code execution and a denial-of-service condition due to a deserialization vulnerability. This issue affects: Mitsubishi Electric MC Works64 version 4.02C (10.95.208.31) and earlier, all versions; Mitsubishi Electric MC Works32 version 3.00A (9.50.255.02); ICONICS GenBroker64, Platform Services, Workbench, FrameWorX Server version 10.96 and prior; ICONICS GenBroker32 version 9.5 and prior.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-20-170-02 updated cvss 7.5

Mitsubishi Electric MC Works64, MC Works32

  • Mitsubishi Electric MC Works32 Version 3.00A (aka Version 9.50.255.02) Mitsubishi Electric MC Works64 <= Version 4.02C (aka <= Version 10.95.208.31)
    affected: mitigation “Mitsubishi Electric recommends updating to the latest software version or applying security patches.” mitsubishielectric.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSA-20-170-03 updated cvss 7.5

ICONICS GENESIS64, GENESIS32

  • ICONICS AnalytiX <= 10.96 ICONICS BizViz <= 9.5 ICONICS GENESIS32 <= 9.5 ICONICS GENESIS64 <= 10.96 ICONICS Hyper Historian <= 10.96 ICONICS MobileHMI <= 10.96
    affected: mitigation “ICONICS is releasing a patch for v10.96, v10.95.5, and v10.95.2 of GENESIS64.” iconics.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

3.94% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Mitsubishi Electric MC Works64
  • Mitsubishi Electric MC Works32
  • ICONICS GenBroker64, Platform Services, Workbench, FrameWorX Server
  • ICONICS GenBroker32

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.