What is CVE-2016-5819?

CVE-2016-5819 is a medium-severity vulnerability in Moxa Oncell G3100v2, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-03-21.

How severe is CVE-2016-5819?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Moxa Oncell G3100v2

CVE-2016-5819

Moxa G3100V2 Series, editions prior to Version 2.8, and OnCell G3111/G3151/G3211/G3251 Series, editions prior to Version 1.7 allows a reflected cross-site scripting attack which may allow an attacker to execute arbitrary script code in the user’s browser within the trust relationship between their browser and the server.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-03-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Moxa Oncell G3100v2
Moxa Oncell G3100v2 Firmware
Moxa Oncell G3100v2 Series — versions < 2.8
Moxa Oncell G3111
Moxa Oncell G3111 Firmware
Moxa Oncell G3111/g3151/g3211/g3251 Series — versions < 1.7
Moxa Oncell G3151
Moxa Oncell G3151 Firmware
Moxa Oncell G3211
Moxa Oncell G3211 Firmware

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

ics-cert.us-cert.gov/advisories/ICSA-16-236-01 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2016-5819?: CVE-2016-5819 is a medium-severity vulnerability in Moxa Oncell G3100v2, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-03-21.
How severe is CVE-2016-5819?: Medium severity. CVSS v3 base score is 6.1 out of 10.