How severe is CVE-2023-5627?

CVE-2023-5627 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-5627 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5627?

CVE-2023-5627 primarily affects Moxa Nport 6150-t Firmware. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-5627?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-5627 published?

CVE-2023-5627 was published on 2023-11-01 and last updated on 2026-06-17.

CVE-2023-5627

CVE-2023-5627 is a high-severity vulnerability in Moxa Nport 6150-t Firmware with a CVSS 3.x base score of 7.5. 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-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Moxa Nport 6150-t Firmware
Published: 2023-11-01
Last modified: 2026-06-17

Description

A vulnerability has been identified in NPort 6000 Series, making the authentication mechanism vulnerable. This vulnerability arises from the incorrect implementation of sensitive information protection, potentially allowing malicious users to gain unauthorized access to the web service.

Frequently asked questions

What is CVE-2023-5627?: A vulnerability has been identified in NPort 6000 Series, making the authentication mechanism vulnerable. This vulnerability arises from the incorrect implementation of sensitive information protection, potentially allowing malicious users to gain unauthorized access to the web service.
How severe is CVE-2023-5627?: CVE-2023-5627 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-5627 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5627?: CVE-2023-5627 primarily affects Moxa Nport 6150-t Firmware. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-5627?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-5627 published?: CVE-2023-5627 was published on 2023-11-01 and last updated on 2026-06-17.

References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-232905-nport-6000-series-incorrect-implementation-of-authentication-algorithm-vulnerability

Affected products (27)

cpe:2.3:o:moxa:nport_6150-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6150_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6250-m-sc-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6250-m-sc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6250-s-sc-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6250-s-sc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6250-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6250_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6450-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6450_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6610-16-48v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6610-16_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6610-32-48v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6610-32_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6610-8-48v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6610-8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-16-48v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-16-hv-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-16-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-16_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-32-48v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-32-hv-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-32_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-8-48v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-8-hv-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-8-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:nport_6650-8_firmware:*:*:*:*:*:*:*:*

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