Certain MOXA devices allow Authenticated Command Injection via /forms/web_importTFTP.
Priority MEDIUM 46CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
Certain MOXA devices allow Authenticated Command Injection via /forms/web_importTFTP. This affects WAC-2004 1.7, WAC-1001 2.1, WAC-1001-T 2.1, OnCell G3470A-LTE-EU 1.7, OnCell G3470A-LTE-EU-T 1.7, TAP-323-EU-CT-T 1.3, TAP-323-US-CT-T 1.3, TAP-323-JP-CT-T 1.3, WDR-3124A-EU 2.3, WDR-3124A-EU-T 2.3, WDR-3124A-US 2.3, and WDR-3124A-US-T 2.3.
Why it matters now
EPSS 0.04613 91st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 24
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:moxa:wac-2004_firmware:1.7:*:*:*:*:*:*:* | 1.7 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:wac-2004:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:wac-1001_firmware:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:wac-1001:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:wac-1001-t_firmware:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:wac-1001-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:oncell_g3470a-lte-eu_firmware:1.7:*:*:*:*:*:*:* | 1.7 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:oncell_g3470a-lte-eu:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:oncell_g3470a-lte-eu-t_firmware:1.7:*:*:*:*:*:*:* | 1.7 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:oncell_g3470a-lte-eu-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
- cpe:2.3:o:moxa:wac-2004_firmware:1.7:*:*:*:*:*:*:* Versions 1.7 Vulnerable ·Moxa
- cpe:2.3:h:moxa:wac-2004:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:wac-1001_firmware:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Moxa
- cpe:2.3:h:moxa:wac-1001:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:wac-1001-t_firmware:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Moxa
- cpe:2.3:h:moxa:wac-1001-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:oncell_g3470a-lte-eu_firmware:1.7:*:*:*:*:*:*:* Versions 1.7 Vulnerable ·Moxa
- cpe:2.3:h:moxa:oncell_g3470a-lte-eu:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:oncell_g3470a-lte-eu-t_firmware:1.7:*:*:*:*:*:*:* Versions 1.7 Vulnerable ·Moxa
- cpe:2.3:h:moxa:oncell_g3470a-lte-eu-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
Show 14 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:moxa:tap-323-eu-ct-t_firmware:1.3:*:*:*:*:*:*:* | 1.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:tap-323-eu-ct-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:tap-323-us-ct-t_firmware:1.3:*:*:*:*:*:*:* | 1.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:tap-323-us-ct-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:tap-323-jp-ct-t_firmware:1.3:*:*:*:*:*:*:* | 1.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:tap-323-jp-ct-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:wdr-3124a-eu_firmware:2.3:*:*:*:*:*:*:* | 2.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:wdr-3124a-eu:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:wdr-3124a-eu-t_firmware:2.3:*:*:*:*:*:*:* | 2.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:wdr-3124a-eu-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:wdr-3124a-us_firmware:2.3:*:*:*:*:*:*:* | 2.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:wdr-3124a-us:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:wdr-3124a-us-t_firmware:2.3:*:*:*:*:*:*:* | 2.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:wdr-3124a-us-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
- cpe:2.3:o:moxa:tap-323-eu-ct-t_firmware:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:tap-323-eu-ct-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:tap-323-us-ct-t_firmware:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:tap-323-us-ct-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:tap-323-jp-ct-t_firmware:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:tap-323-jp-ct-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:wdr-3124a-eu_firmware:2.3:*:*:*:*:*:*:* Versions 2.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:wdr-3124a-eu:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:wdr-3124a-eu-t_firmware:2.3:*:*:*:*:*:*:* Versions 2.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:wdr-3124a-eu-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:wdr-3124a-us_firmware:2.3:*:*:*:*:*:*:* Versions 2.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:wdr-3124a-us:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:wdr-3124a-us-t_firmware:2.3:*:*:*:*:*:*:* Versions 2.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:wdr-3124a-us-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-2021-39279
- 2026-10-03 Alias added: GHSA-h724-3h22-3p4x
References
Advisory 1
More Moxa Oncell G3470a-lte-eu-t Firmware vulnerabilities
- TI-2018-08153 Memory corruption issue was discovered in Moxa OnCell G3470A-LTE Series version 1.6 Build… CVSS 3.0CRITICAL 9.8
- TI-2024-04318 OnCell G3470A-LTE Series: Authenticated Format String Errors CVSS 3.1CRITICAL 9.8
- TI-2024-04315 OnCell G3470A-LTE Series: Authenticated Command Injection via webUploadKey CVSS 3.1HIGH 8.8
- TI-2024-04316 OnCell G3470A-LTE Series: Authenticated Command Injection via webDelIPSec CVSS 3.1HIGH 8.8
- TI-2024-04317 OnCell G3470A-LTE Series: Authenticated Command Injection via sendTestEmail CVSS 3.1HIGH 8.2
- TI-2018-08152 There is Memory corruption in the web interface of Moxa OnCell G3470A-LTE Series version… CVSS 3.0HIGH 7.5
Sources
- CVE-2021-39279 · CVE Program
- CVE-2021-39279 · NVD
- FIRST EPSS
- GHSA-h724-3h22-3p4x · GitHub Advisory Database · CC BY 4.0
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