No exploitation reported

CVE-2016-9366

Q: Is CVE-2016-9366 actively exploited?

Active exploitation of CVE-2016-9366 has not been confirmed. Its EPSS score was 3.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2016-9366?

CVE-2016-9366 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2017-02-13
WeaknessCWE-264 · CWE-307

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

An issue was discovered in Moxa NPort 5110 versions prior to 2.6, NPort 5130/5150 Series versions prior to 3.6, NPort 5200 Series versions prior to 2.8, NPort 5400 Series versions prior to 3.11, NPort 5600 Series versions prior to 3.7, NPort 5100A Series & NPort P5150A versions prior to 1.3, NPort 5200A Series versions prior to 1.3, NPort 5150AI-M12 Series versions prior to 1.2, NPort 5250AI-M12 Series versions prior to 1.2, NPort 5450AI-M12 Series versions prior to 1.2, NPort 5600-8-DT Series versions prior to 2.4, NPort 5600-8-DTL Series versions prior to 2.4, NPort 6x50 Series versions prior to 1.13.11, NPort IA5450A versions prior to v1.4. An attacker can freely use brute force to determine parameters needed to bypass authentication.

Timeline

dates in UTC

2017-02-1321:59CVE 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-2016-9366?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-9366?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Moxa nport 5100 series firmwareversion to verify

Branch	Affected	Fixed in	Source
2.5	≤ 2.5	no fix published	NVD
3.5	≤ 3.5	no fix published	NVD

Moxa nport 5100a series firmwareversion to verify

Branch	Affected	Fixed in	Source
1.2	≤ 1.2	no fix published	NVD

Moxa nport 5200 series firmwareversion to verify

Branch	Affected	Fixed in	Source
2.7	≤ 2.7	no fix published	NVD

7 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-16-336-02A CISA16 known affected
Moxa NPort Device Vulnerabilities
Moxa NPort 5110: <2.7 · Moxa NPort 5130/5150 Series: <3.7 · Moxa NPort 5200 Series: <2.9 · +13 more

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-16-336-02A · 16 productsMoxa has released new firmware versions, which address the identified vulnerabilities in all but one of the affected NPort devices. Moxa recommends installing the new firmware version.
Mitigation from the vendor CISA ICSA-16-336-02A · 16 productsNPort 5110 Version 2.7: (http://www.moxa.com/support/download.aspx?type=support&id=882)
Mitigation from the vendor CISA ICSA-16-336-02A · 16 productsNPort 5130/5150 Series Version 3.7: (http://www.moxa.com/support/download.aspx?type=support&id=356)
Mitigation from the vendor CISA ICSA-16-336-02A · 16 productsNPort 5200 Series Version 2.9: (http://www.moxa.com/support/download.aspx?type=support&id=904)
Mitigation from the vendor CISA ICSA-16-336-02A · 16 productsNPort 5400 Series Version 3.12: (http://www.moxa.com/support/download.aspx?type=support&id=925)
Mitigation from the vendor CISA ICSA-16-336-02A · 16 productsNPort 5600 Series Version 3.8: (http://www.moxa.com/support/download.aspx?type=support&id=905)

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-06-02
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82026-06-02
NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.05read 2026-10-23
CISA-ADPweakness (CWE)CWE-3072026-06-02
NVDweakness (CWE)CWE-264read 2026-10-23
FIRST EPSSEPSS score3.1 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2017-02-13
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-9366?

Is CVE-2016-9366 actively exploited?

Active exploitation of CVE-2016-9366 has not been confirmed. Its EPSS score was 3.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-9366?

CVE-2016-9366 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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