Missing brute-force protection in Moxa NPort
Priority MEDIUM 55CWE-307Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-307.
Summary
An issue was discovered in Moxa NPort 5110 versions prior to 2.6, NPort 5130/5150 Series versions prior to 3.6, NPort 5200 Series versions prior to 2.8, NPort 5400 Series versions prior to 3.11, NPort 5600 Series versions prior to 3.7, NPort 5100A Series & NPort P5150A versions prior to 1.3, NPort 5200A Series versions prior to 1.3, NPort 5150AI-M12 Series versions prior to 1.2, NPort 5250AI-M12 Series versions prior to 1.2, NPort 5450AI-M12 Series versions prior to 1.2, NPort 5600-8-DT Series versions prior to 2.4, NPort 5600-8-DTL Series versions prior to 2.4, NPort 6x50 Series versions prior to 1.13.11, NPort IA5450A versions prior to v1.4. An attacker can freely use brute force to determine parameters needed to bypass authentication.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03138 87th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Moxa NPort | Moxa NPort | — | No fix listed | CNA |
- Moxa NPort Vendor— Affected Moxa NPort Fixed in — No fix listed CNA
CPE configurations NVD · 52
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:moxa:nport_5100_series_firmware:*:*:*:*:*:*:*:* | up to 2.5 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_5110:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_5100_series_firmware:*:*:*:*:*:*:*:* | up to 3.5 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_5130:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5150:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_5200_series_firmware:*:*:*:*:*:*:*:* | up to 2.7 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_5210:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5230:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5232:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5232i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
- cpe:2.3:o:moxa:nport_5100_series_firmware:*:*:*:*:*:*:*:* Versions up to 2.5 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_5110:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_5100_series_firmware:*:*:*:*:*:*:*:* Versions up to 3.5 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_5130:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5150:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_5200_series_firmware:*:*:*:*:*:*:*:* Versions up to 2.7 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_5210:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5230:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5232:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5232i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
Show 42 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:moxa:nport_5400_series_firmware:*:*:*:*:*:*:*:* | up to 3.10 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_5410:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5430:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5430i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5450:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5450-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5450i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5450i-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_5600_series_firmware:*:*:*:*:*:*:*:* | up to 3.6 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_5610:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5630:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5650:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_5100a_series_firmware:*:*:*:*:*:*:*:* | up to 1.2 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_5110a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5130a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5150a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_p5150a_series_firmware:*:*:*:*:*:*:*:* | up to 1.2 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_p5110a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_5200a_series_firmware:*:*:*:*:*:*:*:* | up to 1.2 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_5210a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5230a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5250a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_5x50a1-m12_series_firmware:*:*:*:*:*:*:*:* | up to 1.1 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_5150a1-m12:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5150a1-m12-ct:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5150a1-m12-ct-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5150a1-m12-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5250a1-m12:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5250a1-m12-ct:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5250a1-m12-ct-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5250a1-m12-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5450a1-m12:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5450a1-m12-ct:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5450a1-m12-ct-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5450a1-m12-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5600-8-dtl_series_firmware:*:*:*:*:*:*:*:* | up to 2.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_5610-8-dtl:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5650-8-dtl:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_5650i-8-dtl:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_6100_series_firmware:*:*:*:*:*:*:*:* | up to 1.13 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_6150:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:h:moxa:nport_6150-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
- cpe:2.3:o:moxa:nport_5400_series_firmware:*:*:*:*:*:*:*:* Versions up to 3.10 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_5410:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5430:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5430i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5450:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5450-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5450i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5450i-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_5600_series_firmware:*:*:*:*:*:*:*:* Versions up to 3.6 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_5610:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5630:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5650:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_5100a_series_firmware:*:*:*:*:*:*:*:* Versions up to 1.2 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_5110a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5130a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5150a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_p5150a_series_firmware:*:*:*:*:*:*:*:* Versions up to 1.2 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_p5110a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_5200a_series_firmware:*:*:*:*:*:*:*:* Versions up to 1.2 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_5210a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5230a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5250a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_5x50a1-m12_series_firmware:*:*:*:*:*:*:*:* Versions up to 1.1 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_5150a1-m12:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5150a1-m12-ct:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5150a1-m12-ct-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5150a1-m12-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5250a1-m12:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5250a1-m12-ct:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5250a1-m12-ct-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5250a1-m12-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5450a1-m12:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5450a1-m12-ct:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5450a1-m12-ct-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5450a1-m12-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5600-8-dtl_series_firmware:*:*:*:*:*:*:*:* Versions up to 2.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_5610-8-dtl:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5650-8-dtl:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_5650i-8-dtl:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_6100_series_firmware:*:*:*:*:*:*:*:* Versions up to 1.13 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_6150:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:h:moxa:nport_6150-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9366
- 2026-10-03 Alias added: GHSA-r4qc-5j5j-254j
References
More Moxa Nport 5100 Series Firmware vulnerabilities
- TI-2016-07634 Missing brute-force protection in Moxa NPort CVSS 3.1CRITICAL 9.8
- TI-2016-07642 Missing authentication in Moxa NPort CVSS 3.1CRITICAL 9.8
- TI-2016-07636 Buffer overflow in Moxa NPort CVSS 3.1HIGH 7.3
- TI-2016-07640 Uncontrolled resource consumption in Moxa NPort CVSS 3.1HIGH 7.5
- TI-2016-07638 Cross-site request forgery in Moxa NPort CVSS 3.1HIGH 8.8
- TI-2016-07643 Cross-site scripting in Moxa NPort CVSS 3.0MEDIUM 6.1
Sources
- CVE-2016-9366 · CVE Program
- CVE-2016-9366 · NVD
- FIRST EPSS
- GHSA-r4qc-5j5j-254j · GitHub Advisory Database · CC BY 4.0
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