How severe is CVE-2023-4204?

CVE-2023-4204 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-4204 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4204?

CVE-2023-4204 affects Moxa Nport Iaw5000a-i/o Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4204?

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

When was CVE-2023-4204 published?

CVE-2023-4204 was published on 2023-08-16 and last updated on 2026-06-17.

CVE-2023-4204

CVE-2023-4204 is a medium-severity vulnerability in Moxa Nport Iaw5000a-i/o Firmware with a CVSS 3.x base score of 5.4. 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-798.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Moxa Nport Iaw5000a-i/o Firmware
Published: 2023-08-16
Last modified: 2026-06-17

Description

NPort IAW5000A-I/O Series firmware version v2.2 and prior is affected by a hardcoded credential vulnerabilitywhich poses a potential risk to the security and integrity of the affected device. This vulnerability is attributed to the presence of a hardcoded key, which could potentially facilitate firmware manipulation.

Frequently asked questions

What is CVE-2023-4204?: NPort IAW5000A-I/O Series firmware version v2.2 and prior is affected by a hardcoded credential vulnerabilitywhich poses a potential risk to the security and integrity of the affected device. This vulnerability is attributed to the presence of a hardcoded key, which could potentially facilitate firmware manipulation.
How severe is CVE-2023-4204?: CVE-2023-4204 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-4204 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4204?: CVE-2023-4204 affects Moxa Nport Iaw5000a-i/o Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4204?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4204 published?: CVE-2023-4204 was published on 2023-08-16 and last updated on 2026-06-17.

References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230304-nport-iaw5000a-i-o-series-hardcoded-credential-vulnerability

Affected products (1)

cpe:2.3:o:moxa:nport_iaw5000a-i\/o_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Moxa Nport Iaw5000a-i/o Firmware

CVE-2020-25196 — Critical (CVSS 9.8): The built-in WEB server for MOXA NPort IAW5000A-I/O firmware version 2.1 or lower allows SSH/Telnet sessions, which may…
CVE-2020-25153 — Critical (CVSS 9.8): The built-in web service for MOXA NPort IAW5000A-I/O firmware version 2.1 or lower does not require users to have…
CVE-2020-25198 — High (CVSS 8.8): The built-in WEB server for MOXA NPort IAW5000A-I/O firmware version 2.1 or lower has incorrectly implemented…
CVE-2020-25194 — High (CVSS 8.8): The built-in WEB server for MOXA NPort IAW5000A-I/O firmware version 2.1 or lower has improper privilege management,…
CVE-2020-25190 — High (CVSS 7.5): The built-in WEB server for MOXA NPort IAW5000A-I/O firmware version 2.1 or lower stores and transmits the credentials…
CVE-2023-4929 — Medium (CVSS 6.5): All firmware versions of the NPort 5000 Series are affected by an improper validation of integrity check vulnerability.…

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