RCE in Moxa Oncell G3470a-Lte-Eu
CVE-2021-39279
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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.046 (90.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Moxa Oncell_g3470a-lte-eu
- Moxa Oncell_g3470a-lte-eu_firmware — versions 1.7
- Moxa Oncell_g3470a-lte-eu-t
- Moxa Oncell_g3470a-lte-eu-t_firmware — versions 1.7
- Moxa Tap-323-eu-ct-t
- Moxa Tap-323-eu-ct-t_firmware — versions 1.3
- Moxa Tap-323-jp-ct-t
- Moxa Tap-323-jp-ct-t_firmware — versions 1.3
- Moxa Tap-323-us-ct-t
- Moxa Tap-323-us-ct-t_firmware — versions 1.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- nvd@nist.gov (Exploit, Third Party Advisory, VDB Entry)
Frequently asked questions
- What is CVE-2021-39279?
- CVE-2021-39279 is a high-severity vulnerability in Moxa Oncell G3470a-Lte-Eu, classified under OS Command Injection. CVSS score: 8.8/10. Published 2021-09-07.
- How severe is CVE-2021-39279?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-39279 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.