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No exploitation reportedFix available

CVE-2016-5819

No exploitation reported by the sources we read.

  • Published2019-03-21
  • Fixed in2.8
  • WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-03-2115:59CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-5819?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-5819?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Moxa oncell g3100v2 firmwareversion to verify
BranchAffectedFixed in
2.8< 2.82.8
Moxa oncell g3111 firmwareversion to verify
BranchAffectedFixed in
1.7< 1.71.7
Moxa oncell g3151 firmwareversion to verify
BranchAffectedFixed in
1.7< 1.71.7

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-16-236-01A CISA2 known affected

    Moxa OnCell Vulnerabilities (Update A)

    Moxa OnCell G3100V2 Series: <2.8 · Moxa OnCell G3111/G3151/G3211/G3251 Series: <1.7

Full record on NVD

Fix

  1. Update Moxa oncell g3100v2 firmware to 2.8
  2. Mitigation from the vendor CISA ICSA-16-236-01A · 2 productsMoxa has made firmware fixes available on their web site at the following locations: (http://www.moxa.com/support/sarch_result.aspx?type=soft&prod_id=316&type_id=4)
  3. Mitigation from the vendor CISA ICSA-16-236-01A · 2 products(http://www.moxa.com/support/sarch_result.aspx?type=soft&prod_id=416&type_id=4)
  4. Mitigation from the vendor CISA ICSA-16-236-01A · 2 productsMoxa offers the following advice for upgrading firmware: The OnCell G3111/G3151-HSPA’s firmware can be upgraded though the web console, serial console, or through OnCell Search Utility. However, Moxa recommends a local (LAN) connection to the OnCell to minimize the risk of a broken connection durin…

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.06.1read 2026-10-23
  • NVDCVSS 2.04.3read 2026-10-23
  • CNAweakness (CWE)CWE-79read 2026-10-23
  • NVDweakness (CWE)CWE-79read 2026-10-23
  • FIRST EPSSEPSS score0.9 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published
2019-03-21
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is 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.

Is CVE-2016-5819 actively exploited?

Active exploitation of CVE-2016-5819 has not been confirmed. Its EPSS score was 0.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-5819?

CVE-2016-5819 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

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