NPort 5000 Series Firmware Improper Validation of Integrity Check Vulnerability

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.

Scores

EPSS (exploitation in 30 days)

0.31% · top 76% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

• CWE-354 Improper Validation of Integrity Check Value (opens in a new tab)All about CWE-354 and its CVEs

Affected products

• Moxa · NPort 5000AI-M12 Series

  • affected 1.0 – ≤ 1.5

• Moxa · NPort 5100 Series

  • affected 1.0 – ≤ 3.10

• Moxa · NPort 5100A Series

  • affected 1.0 – ≤ 1.6

• Moxa · NPort 5200 Series

  • affected 1.0 – ≤ 2.12

• Moxa · NPort 5200A Series

  • affected 1.0 – ≤ 1.6

• Moxa · NPort 5400 Series

  • affected 1.0 – ≤ 3.14

• Moxa · NPort 5600 Series

  • affected 1.0 – ≤ 3.11

• Moxa · NPort 5600-DT Series

  • affected 1.0 – ≤ 2.9

• Moxa · NPort IA5000 Series

  • affected 1.0 – ≤ 2.1

• Moxa · NPort IA5000A Series

  • affected 1.0 – ≤ 2.0

• Moxa · NPort IA5000A-I/O Series

  • affected 1.0 – ≤ 2.0

• Moxa · NPort IAW5000A-I/O Series

  • affected 1.0 – ≤ 2.2

• Moxa · NPort P5150A Series

  • affected 1.0 – ≤ 1.6

What to do

Solution: Due to design restrictions, we could not fix this vulnerability in NPort 5000 Series. We suggest users follow the instructions in the hardening guide https://www.moxa.com/getmedia/67b5e549-a125-4a6a-b99b-23017c75cfc1/moxa-the-security-hardening-guide-for-the-nport-5000-series-tech-note-v1.1.pdf in order to mitigate this vulnerability. Additionally, refer to the following mitigation measures to deploy the product in an appropriate product security context. Moxa recommends users follow these CISA recommendations. Users should * Reduce network exposure by ensuring that all control system devices and systems are not accessible from the Internet. * Place control system networks and remote devices behind firewalls, isolating them from business networks. * When remote access is necessary, employ secure methods such as Virtual Private Networks (VPNs). It is important to note that VPNs may have vulnerabilities and should be kept up to date with the latest available version. Remember that the security of a VPN depends on the security of its connected devices.

References (1)

• https://www.moxa.com/en/support/product-support/security-advisory/mpsa-233328-nport-5000-series-firmware-improper-validation-of-integrity-check-vulnerability (opens in a new tab)vendor-advisoryx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2023-4929](https://trackcve.app/badge/CVE-2023-4929.svg)](https://trackcve.app/cve/CVE-2023-4929)

Record last updated 23 Sept 2024, 13:29 UTC.