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Fencer Vulns
high 7.5

CVE-2020-5603 json

Uncontrolled resource consumption vulnerability in Mitsubishi Electoric FA Engineering Software (CPU Module Logging Configuration Tool Ver.

published 2020-06-30 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-26764

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

Uncontrolled resource consumption vulnerability in Mitsubishi Electoric FA Engineering Software (CPU Module Logging Configuration Tool Ver. 1.94Y and earlier, CW Configurator Ver. 1.010L and earlier, EM Software Development Kit (EM Configurator) Ver. 1.010L and earlier, GT Designer3 (GOT2000) Ver. 1.221F and earlier, GX LogViewer Ver. 1.96A and earlier, GX Works2 Ver. 1.586L and earlier, GX Works3 Ver. 1.058L and earlier, M_CommDTM-HART Ver. 1.00A, M_CommDTM-IO-Link Ver. 1.02C and earlier, MELFA-Works Ver. 4.3 and earlier, MELSEC-L Flexible High-Speed I/O Control Module Configuration Tool Ver.1.004E and earlier, MELSOFT FieldDeviceConfigurator Ver. 1.03D and earlier, MELSOFT iQ AppPortal Ver. 1.11M and earlier, MELSOFT Navigator Ver. 2.58L and earlier, MI Configurator Ver. 1.003D and earlier, Motion Control Setting Ver. 1.005F and earlier, MR Configurator2 Ver. 1.72A and earlier, MT Works2 Ver. 1.156N and earlier, RT ToolBox2 Ver. 3.72A and earlier, and RT ToolBox3 Ver. 1.50C and earlier) allows an attacker to cause a denial of service (DoS) condition attacks via unspecified vectors.

Vendor advisories

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

cisa ICSA-20-182-02 updated cvss 7.5

Mitsubishi Electric Factory Automation Engineering Software Products

  • Mitsubishi Electric CPU Module Logging Configuration Tool <= 1.94Y Mitsubishi Electric CW Configurator <= 1.010L Mitsubishi Electric EM Software Development Kit (EM Configurator) <= 1.010L Mitsubishi Electric GT Designer3 (GOT2000) <= 1.221F Mitsubishi Electric GX LogViewer <= 1.96A Mitsubishi Electric GX Works2 <= 1.586L
    +14 more products
    Mitsubishi Electric GX Works3 <= 1.058L Mitsubishi Electric M_CommDTM-HART 1.00A Mitsubishi Electric M_CommDTM-IO-Link <= 1.02C Mitsubishi Electric MELFA-Works <= 4.3 Mitsubishi Electric MELSEC-L Flexible High-Speed I/O Control Module Configuration Tool <= 1.004E Mitsubishi Electric MELSOFT FieldDeviceConfigurator <= 1.03D Mitsubishi Electric MELSOFT iQ AppPortal <= 1.11M Mitsubishi Electric MELSOFT Navigator <= 2.58L Mitsubishi Electric MI Configurator <= 1.003D Mitsubishi Electric Motion Control Setting <= 1.005F Mitsubishi Electric MR Configurator2 <= 1.72A Mitsubishi Electric MT Works2 <= 1.156N Mitsubishi Electric RT ToolBox2 <= 3.72A Mitsubishi Electric RT ToolBox3 <= 1.50C
    affected: vendor fix, mitigation “Mitsubishi Electric recommends that affected users download the latest version of each software product from the following site and update it: https://www.mitsubishielectric.com/fa/#software” 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

Exploit prediction

1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Mitsubishi Electric Corporation Mitsubishi Electoric FA Engineering Software

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns 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.