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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.046 (91.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.046 · newest: 0.046 · change: 0.000
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
- www.moxa.com (Vendor Advisory)
- packetstormsecurity.com/files/164014 (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.