CVE-2021-39279

HIGH
8.8
CVSS Score
Published: September 7, 2021 at 05:40 AM UTC
Updated: June 17, 2026 at 04:03 AM UTC
24 products affected across 1 vendorOncell G3470A LTE Eu T FirmwareOncell G3470A LTE Eu FirmwareWac 2004 Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 5%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

moxa-oncell-g3470a-lte-eu (same device)
moxa-oncell-g3470a-lte-eu-t (same device)
moxa-tap-323-eu-ct-t (same device)
moxa-tap-323-jp-ct-t (same device)
moxa-tap-323-us-ct-t (same device)
moxa-wac-1001 (same device)
moxa-wac-1001-t (same device)
moxa-wac-2004 (same device)
moxa-wdr-3124a-eu (same device)
moxa-wdr-3124a-eu-t (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCVendor Advisory
https://www.moxa.com
ExploitThird Party AdvisoryVDB Entry
https://packetstormsecurity.com/files/164014

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78

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