# Improper Resource Locking vulnerability in Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V firmware versions "16" and prior, Mitsubishi Electric MELSEC-Q Series Q03UDECPU the first 5 digits of seria…

CVE record · `CVE-2022-24946`

- **Identifiers:** `CVE-2022-24946`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Mitsubishi
- **Weakness (CWE):** [CWE-413](https://cwe.mitre.org/data/definitions/413.html)
- **Tags:** [CWE-413](https://agentprime.io/advisories/tag/cwe-413.md)
- **Technologies:** [Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V; Mitsubishi Electric MELSEC-Q Series Q03UDECPU; Mitsubishi Electric MELSEC-Q Series Q04/06/10/13/20/26/50/100UDEHCPU; Mitsubishi Electric MELSEC-Q Series Q03/04/06/13/26UDVCPU; Mitsubishi Electric MELSEC-Q Series Q04/06/13/26UDPVCPU; Mitsubishi Electric MELSEC-Q Series Q12DCCPU-V; Mitsubishi Electric MELSEC-Q Series Q24DHCCPU-V(G); Mitsubishi Electric MELSEC-Q Series Q24/26DHCCPU-LS; Mitsubishi Electric MELSEC-L series L02/06/26CPU(-P); Mitsubishi Electric MELSEC-L series L26CPU-(P)BT; Mitsubishi Electric MELIPC Series MI5122-VW](https://agentprime.io/advisories/technology/mitsubishi-electric-melsec-iq-r-series-r12ccpu-v-mitsubishi-electric-melsec-q-se.md)
- **Published:** 15 Jun 2022
- **Updated:** 2 Jun 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Mitsubishi) at 15 Jun 2022, 20:18 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: Not given. Product: Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V; Mitsubishi Electric MELSEC-Q Series Q03UDECPU; Mitsubishi Electric MELSEC-Q Series Q04/06/10/13/20/26/50/100UDEHCPU; Mitsubishi Electric MELSEC-Q Series Q03/04/06/13/26UDVCPU; Mitsubishi Electric MELSEC-Q Series Q04/06/13/26UDPVCPU; Mitsubishi Electric MELSEC-Q Series Q12DCCPU-V; Mitsubishi Electric MELSEC-Q Series Q24DHCCPU-V(G); Mitsubishi Electric MELSEC-Q Series Q24/26DHCCPU-LS; Mitsubishi Electric MELSEC-L series L02/06/26CPU(-P); Mitsubishi Electric MELSEC-L series L26CPU-(P)BT; Mitsubishi Electric MELIPC Series MI5122-VW.
  - affected: `Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V firmware versions "16" and prior`
  - affected: `Mitsubishi Electric MELSEC-Q Series Q03UDECPU the first 5 digits of serial No. "24061" and prior`
  - affected: `Mitsubishi Electric MELSEC-Q Series Q04/06/10/13/20/26/50/100UDEHCPU the first 5 digits of serial No. "24061" and prior`
  - affected: `Mitsubishi Electric MELSEC-Q Series Q03/04/06/13/26UDVCPU the first 5 digits of serial number "24051" and prior`
  - affected: `Mitsubishi Electric MELSEC-Q Series Q04/06/13/26UDPVCPU the first 5 digits of serial number "24051" and prior`
  - affected: `Mitsubishi Electric MELSEC-Q Series Q12DCCPU-V all versions`
  - affected: `Mitsubishi Electric MELSEC-Q Series Q24DHCCPU-V(G) all versions`
  - affected: `Mitsubishi Electric MELSEC-Q Series Q24/26DHCCPU-LS all versions`
  - affected: `Mitsubishi Electric MELSEC-L series L02/06/26CPU(-P) the first 5 digits of serial number "24051" and prior`
  - affected: `Mitsubishi Electric MELSEC-L series L26CPU-(P)BT the first 5 digits of serial number "24051" and prior`
  - affected: `Mitsubishi Electric MELIPC Series MI5122-VW firmware versions "05" and prior`

## 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:N/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.018, the 77th 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 15 Jun 2022. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2022-24946](https://www.cve.org/CVERecord?id=CVE-2022-24946)
- [NVD: CVE-2022-24946](https://nvd.nist.gov/vuln/detail/CVE-2022-24946)

### References from the CNA

- <https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-007_en.pdf>
- <https://jvn.jp/vu/JVNVU90895626/index.html>
- <https://www.cisa.gov/uscert/ics/advisories/icsa-22-172-01>

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-2022-24946>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2022-24946/>. Everything for agents: <https://agentprime.io/llms.txt>.