# NPort 5000 Series Firmware Improper Validation of Integrity Check Vulnerability

CVE record · `CVE-2023-4929`

- **Identifiers:** `CVE-2023-4929`
- **State:** Confirmed
- **Severity:** CVSS 6.5 Medium
- **Critical:** No
- **CNA:** Moxa
- **Weakness (CWE):** [CWE-354](https://cwe.mitre.org/data/definitions/354.html)
- **Tags:** [CWE-354](https://agentprime.io/advisories/tag/cwe-354.md)
- **Technologies:** [Moxa NPort 5000AI-M12 Series](https://agentprime.io/advisories/technology/moxa-nport-5000ai-m12-series.md) · [Moxa NPort 5100 Series](https://agentprime.io/advisories/technology/moxa-nport-5100-series.md) · [Moxa NPort 5100A Series](https://agentprime.io/advisories/technology/moxa-nport-5100a-series.md) · [Moxa NPort 5200 Series](https://agentprime.io/advisories/technology/moxa-nport-5200-series.md) · [Moxa NPort 5200A Series](https://agentprime.io/advisories/technology/moxa-nport-5200a-series.md) · [Moxa NPort 5400 Series](https://agentprime.io/advisories/technology/moxa-nport-5400-series.md) · [Moxa NPort 5600 Series](https://agentprime.io/advisories/technology/moxa-nport-5600-series.md) · [Moxa NPort 5600-DT Series](https://agentprime.io/advisories/technology/moxa-nport-5600-dt-series.md) · [Moxa NPort IA5000 Series](https://agentprime.io/advisories/technology/moxa-nport-ia5000-series.md) · [Moxa NPort IA5000A Series](https://agentprime.io/advisories/technology/moxa-nport-ia5000a-series.md) · [Moxa NPort IA5000A-I/O Series](https://agentprime.io/advisories/technology/moxa-nport-ia5000a-i-o-series.md) · [Moxa NPort IAW5000A-I/O Series](https://agentprime.io/advisories/technology/moxa-nport-iaw5000a-i-o-series.md) · [Moxa NPort P5150A Series](https://agentprime.io/advisories/technology/moxa-nport-p5150a-series.md)
- **Published:** 3 Oct 2023
- **Updated:** 23 Sept 2024
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Moxa) at 3 Oct 2023, 13:54 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: Moxa. Product: NPort 5000AI-M12 Series.
  - affected: `1.0 to 1.5, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort 5100 Series.
  - affected: `1.0 to 3.10, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort 5100A Series.
  - affected: `1.0 to 1.6, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort 5200 Series.
  - affected: `1.0 to 2.12, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort 5200A Series.
  - affected: `1.0 to 1.6, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort 5400 Series.
  - affected: `1.0 to 3.14, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort 5600 Series.
  - affected: `1.0 to 3.11, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort 5600-DT Series.
  - affected: `1.0 to 2.9, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort IA5000 Series.
  - affected: `1.0 to 2.1, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort IA5000A Series.
  - affected: `1.0 to 2.0, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort IA5000A-I/O Series.
  - affected: `1.0 to 2.0, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort IAW5000A-I/O Series.
  - affected: `1.0 to 2.2, inclusive` (custom)
  - Other versions: unaffected
- Vendor: Moxa. Product: NPort P5150A Series.
  - affected: `1.0 to 1.6, inclusive` (custom)
  - Other versions: unaffected

## 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

- 6.5 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H`, from CNA (Moxa)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0031, the 24th percentile, on 6 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 3 Oct 2023. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2023-4929](https://www.cve.org/CVERecord?id=CVE-2023-4929)
- [NVD: CVE-2023-4929](https://nvd.nist.gov/vuln/detail/CVE-2023-4929)

### References from the CNA

- <https://www.moxa.com/en/support/product-support/security-advisory/mpsa-233328-nport-5000-series-firmware-improper-validation-of-integrity-check-vulnerability> (vendor-advisory)

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-2023-4929>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2023-4929/>. Everything for agents: <https://agentprime.io/llms.txt>.