CVE-2023-6815
Incorrect Privilege Assignment vulnerability in Mitsubishi Electric Corporation MELSEC iQ-R Series Safety CPU R08/16/32/120SFCPU all…
- Published
- Updated
- Reserved
- Assigned by
- Mitsubishi
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.
Timeline
ID reserved
By Mitsubishi
- 2 months later
· 2 months later
Published
- 6 months later
· 6 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| MitsubishiCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.70% · top 47% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
Mitsubishi Electric Corporation · MELSEC iQ-R Series Safety CPU R08SFCPU
- affected all versions
Mitsubishi Electric Corporation · MELSEC iQ-R Series Safety CPU R16SFCPU
- affected all versions
Mitsubishi Electric Corporation · MELSEC iQ-R Series Safety CPU R32SFCPU
- affected all versions
Mitsubishi Electric Corporation · MELSEC iQ-R Series Safety CPU R120SFCPU
- affected all versions
Mitsubishi Electric Corporation · MELSEC iQ-R Series SIL2 Process CPU R08PSFCPU
- affected all versions
Mitsubishi Electric Corporation · MELSEC iQ-R Series SIL2 Process CPU R16PSFCPU
- affected all versions
Mitsubishi Electric Corporation · MELSEC iQ-R Series SIL2 Process CPU R32PSFCPU
- affected all versions
Mitsubishi Electric Corporation · MELSEC iQ-R Series SIL2 Process CPU R120PSFCPU
- affected all versions
References (3)
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-021_en.pdf (opens in a new tab)vendor-advisoryx_transferred
- https://jvn.jp/vu/JVNVU95085830/index.html (opens in a new tab)government-resourcex_transferred
- https://www.cisa.gov/news-events/ics-advisories/icsa-24-044-01 (opens in a new tab)government-resourcex_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-6815)Record last updated .