CVE-2023-4929

CVE-2023-4929 is a medium-severity vulnerability in Moxa Nport 5150ai-m12-ct-t Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-354.

Key facts

• Severity: Medium (CVSS 3.x base score 6.5)
• EPSS exploit prediction: 0% (18th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-354
• Affected product: Moxa Nport 5150ai-m12-ct-t Firmware
• Published: 2023-10-03
• Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-4929?

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.

How severe is CVE-2023-4929?

CVE-2023-4929 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2023-4929 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4929?

CVE-2023-4929 primarily affects Moxa Nport 5150ai-m12-ct-t Firmware. In total, 108 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-4929?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-4929 published?

CVE-2023-4929 was published on 2023-10-03 and last updated on 2026-06-17.

References

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

Affected products (108)

• cpe:2.3:o:moxa:nport_5150ai-m12-ct-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5250ai-m12-ct-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5150ai-m12-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5250ai-m12-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5450ai-m12-ct-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5150ai-m12_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5250ai-m12_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5150ai-m12-ct_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5250ai-m12-ct_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5450ai-m12-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5450ai-m12_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5450ai-m12-ct_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5130_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5150_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5110_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5110-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5110a_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5110a-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5130a_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5130a-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5150a_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5150a-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5210a_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5210a-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5230a_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5230a-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5250a_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5250a-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5210_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5232_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5210-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5232-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5230-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5232i-t_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5230_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5232i_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5410_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5430_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5450_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:moxa:nport_5450i_firmware:*:*:*:*:*:*:*:*

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