CVE-2021-39278

mediumpriority · track · 24EPSS 0.009 · 61 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.94% (61st) EPSS

CVSS 4.3 · medium

Is it mine?

18 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

Certain MOXA devices allow reflected XSS via the Config Import menu. 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.

cvss

Technical severity, 0–10. One row per scoring source.

6.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:P/A:Nsecondary · FSTEC (BDU) RU

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (18)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Moxa Inc. Moxa OnCell G3470A-LTE≤ 1.7fstec_bduRU
Moxa Inc. TAP-323 Series≤ 1.3fstec_bduRU
Moxa Inc. WAC-1001 Series≤ 2.1fstec_bduRU
Moxa Inc. WAC-2004 Series≤ 1.6fstec_bduRU
Moxa Inc. WDR-3124A Series≤ 1.3fstec_bduRU
moxa oncell g3470a-lte-eu firmware= 1.7nvdUScpe:2.3:o:moxa:oncell_g3470a-lte-eu_firmware:*:*:*:*:*:*:*:*
moxa oncell g3470a-lte-eu-t firmware= 1.7nvdUScpe:2.3:o:moxa:oncell_g3470a-lte-eu-t_firmware:*:*:*:*:*:*:*:*
moxa tap-323-eu-ct-t firmware= 1.3nvdUScpe:2.3:o:moxa:tap-323-eu-ct-t_firmware:*:*:*:*:*:*:*:*
moxa tap-323-jp-ct-t firmware= 1.3nvdUScpe:2.3:o:moxa:tap-323-jp-ct-t_firmware:*:*:*:*:*:*:*:*
moxa tap-323-us-ct-t firmware= 1.3nvdUScpe:2.3:o:moxa:tap-323-us-ct-t_firmware:*:*:*:*:*:*:*:*
moxa wac-1001 firmware= 2.1nvdUScpe:2.3:o:moxa:wac-1001_firmware:*:*:*:*:*:*:*:*
moxa wac-1001-t firmware= 2.1nvdUScpe:2.3:o:moxa:wac-1001-t_firmware:*:*:*:*:*:*:*:*
moxa wac-2004 firmware= 1.7nvdUScpe:2.3:o:moxa:wac-2004_firmware:*:*:*:*:*:*:*:*
moxa wdr-3124a-eu firmware= 2.3nvdUScpe:2.3:o:moxa:wdr-3124a-eu_firmware:*:*:*:*:*:*:*:*
moxa wdr-3124a-eu-t firmware= 2.3nvdUScpe:2.3:o:moxa:wdr-3124a-eu-t_firmware:*:*:*:*:*:*:*:*
moxa wdr-3124a-us firmware= 2.3nvdUScpe:2.3:o:moxa:wdr-3124a-us_firmware:*:*:*:*:*:*:*:*
moxa wdr-3124a-us-t firmware= 2.3nvdUScpe:2.3:o:moxa:wdr-3124a-us-t_firmware:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2021-09-07modified 2026-06-17

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+53072 more

references (6)

External citations — patches, advisories, analysis.

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