# Path traversal in OMRON Corporation Machine Automation Controller NJ Series and others

CVE record · `CVE-2024-27121`

- **Identifiers:** `CVE-2024-27121`
- **State:** Confirmed
- **Severity:** CVSS 7.2 High
- **Critical:** No
- **CNA:** jpcert
- **Weakness (CWE):** [CWE-22](https://cwe.mitre.org/data/definitions/22.html)
- **Tags:** [Path traversal](https://agentprime.io/advisories/tag/path-traversal.md)
- **Technologies:** [OMRON Corporation Machine Automation Controller NJ Series](https://agentprime.io/advisories/technology/omron-corporation-machine-automation-controller-nj-series.md) · [OMRON Corporation Machine Automation Controller NX Series](https://agentprime.io/advisories/technology/omron-corporation-machine-automation-controller-nx-series.md)
- **Published:** 12 Mar 2024
- **Updated:** 16 Aug 2024
- **Reviewed by a person:** No

Published by the CVE Program (CNA: jpcert) at 12 Mar 2024, 07:55 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: OMRON Corporation. Product: Machine Automation Controller NJ Series.
  - affected: `NJ101-[][][][] Ver.1.64.03 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NJ Series.
  - affected: `NJ301-[][][][] Ver.1.64.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NJ Series.
  - affected: `NJ501-1[]0[] Ver.1.64.03 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NJ Series.
  - affected: `NJ501-1[]2[] Ver.1.64.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NJ Series.
  - affected: `NJ501-1340 Ver.1.64.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NJ Series.
  - affected: `NJ501-4[][][] Ver.1.64.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NJ Series.
  - affected: `NJ501-5300 Ver.1.64.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NJ Series.
  - affected: `NJ501-R[][][] Ver.1.64.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NX Series.
  - affected: `NX1P2-[][][][][][] Ver.1.64.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NX Series.
  - affected: `NX1P2-[][][][][][]1 Ver.1.64.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NX Series.
  - affected: `NX102-[][][][] Ver.1.64.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NX Series.
  - affected: `NX502-[][][][] Ver.1.65.01 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NX Series.
  - affected: `NX701-[][][][] Ver.1.35.00 and earlier`
- Vendor: OMRON Corporation. Product: Machine Automation Controller NX Series.
  - affected: `NX-EIP201 Ver.1.00.01 and earlier`

## 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

- 7.2 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0088, the 59th 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 12 Mar 2024. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2024-27121](https://www.cve.org/CVERecord?id=CVE-2024-27121)
- [NVD: CVE-2024-27121](https://nvd.nist.gov/vuln/detail/CVE-2024-27121)

### References from the CNA

- <https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2024-001_en.pdf>
- <https://www.fa.omron.co.jp/product/security/assets/pdf/ja/OMSR-2024-001_ja.pdf>
- <https://jvn.jp/en/vu/JVNVU95852116/index.html>

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-2024-27121>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2024-27121/>. Everything for agents: <https://agentprime.io/llms.txt>.