Cleartext transmission of sensitive information in NPort IA5000A Series with Telnet…
Priority LOW 26CWE-319Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-319.
Summary
The NPort IA5000A Series devices use Telnet as one of the network device management services. Telnet does not support the encryption of client-server communications, making it vulnerable to Man-in-the-Middle attacks.
Why it matters now
EPSS 0.00318 24th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | NPort IA5000A Series with Telnet enabled | All versions | — | No fix listed | CNA |
- NPort IA5000A Series with Telnet enabled Vendor— Affected All versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:moxa:nport_ia5150a_firmware:*:*:*:*:*:*:*:* | up to 1.4 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_ia5150a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_ia5250a_firmware:*:*:*:*:*:*:*:* | up to 1.4 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_ia5250a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_ia5450a_firmware:*:*:*:*:*:*:*:* | up to 1.7 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_ia5450a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
- cpe:2.3:o:moxa:nport_ia5150a_firmware:*:*:*:*:*:*:*:* Versions up to 1.4 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_ia5150a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_ia5250a_firmware:*:*:*:*:*:*:*:* Versions up to 1.4 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_ia5250a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_ia5450a_firmware:*:*:*:*:*:*:*:* Versions up to 1.7 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_ia5450a:-:*:*:*:*:*:*:* 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-2020-27184
- 2026-10-03 Alias added: GHSA-7cmj-xmp5-mmr2
References
More Moxa Nport Ia5150a Firmware vulnerabilities
- TI-2023-04539 NPort 5000 Series Firmware Improper Validation of Integrity Check Vulnerability CVSS 3.1HIGH 8.8
- TI-2020-16501 In multiple versions of NPort IA5000A Series, the result of exporting a device’s… CVSS 3.1HIGH 7.5
- TI-2020-16526 Cleartext transmission of sensitive information in NPort IA5000A Series with Moxa Service… CVSS 3.1HIGH 7.5
- TI-2020-16500 By exploiting a vulnerability in NPort IA5150A/IA5250A Series before version 1.5, a user… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-27184 · CVE Program
- CVE-2020-27184 · NVD
- FIRST EPSS
- GHSA-7cmj-xmp5-mmr2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences