CVE-2023-5627 | Incorrect Implementation of Authentication Algorithm Vulnerability

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.

Published: 2023-11-01 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-5627 is rated Moderate Risk (42.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.09%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-5627

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2023-11-10 0.04% 0.09% +0.04%
2 2023-11-02 — 0.04% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-5627

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2023-5627

Affected software / configurations for CVE-2023-5627

Vendor Product Version Raw CPE
moxa nport_6150-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6150-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6150_firmware <= 1.21 cpe:2.3:o:moxa:nport_6150_firmware:*:*:*:*:*:*:*:*
moxa nport_6250-m-sc-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6250-m-sc-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6250-m-sc_firmware <= 1.21 cpe:2.3:o:moxa:nport_6250-m-sc_firmware:*:*:*:*:*:*:*:*
moxa nport_6250-s-sc-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6250-s-sc-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6250-s-sc_firmware <= 1.21 cpe:2.3:o:moxa:nport_6250-s-sc_firmware:*:*:*:*:*:*:*:*
moxa nport_6250-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6250-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6250_firmware <= 1.21 cpe:2.3:o:moxa:nport_6250_firmware:*:*:*:*:*:*:*:*
moxa nport_6450-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6450-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6450_firmware <= 1.21 cpe:2.3:o:moxa:nport_6450_firmware:*:*:*:*:*:*:*:*
moxa nport_6610-16-48v_firmware <= 1.21 cpe:2.3:o:moxa:nport_6610-16-48v_firmware:*:*:*:*:*:*:*:*
moxa nport_6610-16_firmware <= 1.21 cpe:2.3:o:moxa:nport_6610-16_firmware:*:*:*:*:*:*:*:*
moxa nport_6610-32-48v_firmware <= 1.21 cpe:2.3:o:moxa:nport_6610-32-48v_firmware:*:*:*:*:*:*:*:*
moxa nport_6610-32_firmware <= 1.21 cpe:2.3:o:moxa:nport_6610-32_firmware:*:*:*:*:*:*:*:*
moxa nport_6610-8-48v_firmware <= 1.21 cpe:2.3:o:moxa:nport_6610-8-48v_firmware:*:*:*:*:*:*:*:*
moxa nport_6610-8_firmware <= 1.21 cpe:2.3:o:moxa:nport_6610-8_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-16-48v_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-16-48v_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-16-hv-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-16-hv-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-16-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-16-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-16_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-16_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-32-48v_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-32-48v_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-32-hv-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-32-hv-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-32_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-32_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-8-48v_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-8-48v_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-8-hv-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-8-hv-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-8-t_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-8-t_firmware:*:*:*:*:*:*:*:*
moxa nport_6650-8_firmware <= 1.21 cpe:2.3:o:moxa:nport_6650-8_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-5627

cvelogic Threat Intelligence