# Authentication Bypass Vulnerability in Robot Controller of MELFA SD/SQ series and F-series

CVE record · `CVE-2022-33323`

- **Identifiers:** `CVE-2022-33323`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Mitsubishi
- **Weakness (CWE):** [CWE-489](https://cwe.mitre.org/data/definitions/489.html)
- **Tags:** [CWE-489](https://agentprime.io/advisories/tag/cwe-489.md)
- **Technologies:** [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR1DA-771 of RV-2SD](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr1da-771-of-rv-2s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR1DA-721 of RV-3SD](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr1da-721-of-rv-3s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR1DA-731 of RV-3SDBC](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr1da-731-of-rv-3s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR2DA-711 of RV-6SD](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr2da-711-of-rv-6s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR3D-711M of RV-6SDC-SM](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr3d-711m-of-rv-6s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR3D-701M of RV-12SD](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr3d-701m-of-rv-12.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR3D-701 of RV-12SDC](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr3d-701-of-rv-12s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR2DA-781 of RH-3SDHR3515](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr2da-781-of-rh-3s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH3520](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr1da-761-of-rh-6s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR2DA-741 of RH-12SDH5535](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr2da-741-of-rh-12.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR2DA-751 of RH-12SDH5538M](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr2da-751-of-rh-12.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR2DA-751 of RH-18SDH8535](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr2da-751-of-rh-18.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR2DA-751 of RH-20SDH8535](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr2da-751-of-rh-20.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR1QA-772 of RV-2SQ](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr1qa-772-of-rv-2s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR1QA-721 of RV-3SQ](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr1qa-721-of-rv-3s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR1QA-731 of RV-3SQJ](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr1qa-731-of-rv-3s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR2QA-711 of RV-6SQ](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr2qa-711-of-rv-6s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR3Q-711M of RV-6SQ-SM](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr3q-711m-of-rv-6s.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR3Q-701M of RV-12SQ](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr3q-701m-of-rv-12.md) · [Mitsubishi Electric Corporation MELFA SD/SQ Series Controller CR3Q-701 of RV-12SQC](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melfa-sd-sq-series-controller-cr3q-701-of-rv-12s.md)
- **Published:** 2 Feb 2023
- **Updated:** 26 Mar 2025
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Mitsubishi) at 2 Feb 2023, 05:49 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-771 of RV-2SD.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-771 of RV-2SDB.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-721 of RV-3SD.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-721 of RV-3SD-SM.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-721 of RV-3SDC.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-721 of RV-3SDB.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-721 of RV-3SDB-SM.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-731 of RV-3SDBC.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-731 of RV-3SDJ.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-731 of RV-3SDJ-SM.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-731 of RV-3SDJC.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-731 of RV-3SDJB.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-731 of RV-3SDJB-SM.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-731 of RV-3SDJBC.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR2DA-711 of RV-6SD.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR2DA-711 of RV-6SDC.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR2DA-711 of RV-6SDL.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR2DA-711 of RV-6SDLC.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR3D-711M of RV-6SDC-SM.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR3D-711M of RV-6SDLC-SM.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR3D-701M of RV-12SD.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR3D-701 of RV-12SDC.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR3D-701M of RV-12SDL.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR3D-701 of RV-12SDLC.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR2DA-781 of RH-3SDHR3515.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR2DA-781 of RH-3SDHR3515C.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR2DA-781 of RH-3SDHR3515W.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH3520.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH3532.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH4520.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH4532.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH5532.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH5520.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH3517M.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH3517M-SM.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH3527M.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH4517M.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH4527M.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH5517M.
  - affected: `S7x and prior`
- Vendor: Mitsubishi Electric Corporation. Product: MELFA SD/SQ Series Controller CR1DA-761 of RH-6SDH5517M-SM.
  - affected: `S7x and prior`

And 404 more products. The full list is on the CVE record: <https://www.cve.org/CVERecord?id=CVE-2022-33323>

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 7.5 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`, from CNA (Mitsubishi)

- **CISA KEV:** Not listed.
- **EPSS:** 0.011, the 66th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 2 Feb 2023. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2022-33323](https://www.cve.org/CVERecord?id=CVE-2022-33323)
- [NVD: CVE-2022-33323](https://nvd.nist.gov/vuln/detail/CVE-2022-33323)

### References from the CNA

- <https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-020_en.pdf>
- <https://jvn.jp/vu/JVNVU94588481/index.html>
- <https://www.cisa.gov/uscert/ics/advisories/icsa-23-026-05>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2022-33323>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2022-33323/>. Everything for agents: <https://agentprime.io/llms.txt>.
