HOMEVULNERABILITIESCVE-2016-5819
MEDIUM

CVE-2016-5819

CWE-79Published: March 21, 2019· Updated: Jun 17, 2026

6.1
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2016-5819 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeChanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Vendors & Products

moxa10 product(s)
oncell g3100v2 firmwareoncell g3100v2oncell g3111 firmwareoncell g3111oncell g3151 firmwareoncell g3151oncell g3211 firmwareoncell g3211oncell g3251 firmwareoncell g3251
Source: NVD CPE · 10 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (2)

https://ics-cert.us-cert.gov/advisories/ICSA-16-236-01Third Party Advisory · US Government Resource
https://ics-cert.us-cert.gov/advisories/ICSA-16-236-01Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2016-5819
CVSS Score6.1 / 10
SeverityMEDIUM
WeaknessCWE-79
CISA KEVNo
Affected1 vendor(s)
PublishedMar 21, 2019

Related CVEs (CWE-79)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2016-5819 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.