Public proof of conceptFix available

CVE-2017-16744

A public proof of concept exists; no exploitation attested.

Published2018-08-20
WeaknessCWE-22

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

A path traversal vulnerability in Tridium Niagara AX Versions 3.8 and prior and Niagara 4 systems Versions 4.4 and prior installed on Microsoft Windows Systems can be exploited by leveraging valid platform (administrator) credentials.

Timeline

dates in UTC

2018-08-2021:29CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 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-2017-16744?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-16744?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Tridium niagara

Branch	Affected	Fixed in	Source
4.x	≥ 4.0, ≤ 4.4	no fix published	NVD

Tridium niagara ax framework

Branch	Affected	Fixed in	Source
3.8	≤ 3.8	no fix published	NVD

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-19-022-01 CISA2 known affected
Johnson Controls Facility Explorer
Facility Explorer: Versions 6.x prior to 6.6 · Facility Explorer: Versions 14.x prior to 14.4u1
ICSA-18-191-03 CISA2 known affected
Tridium Niagara
Niagara 4 Framework: Versions 4.4 and prior · Niagara AX Framework: Version 3.8 and prior

Full record on NVD

Fix

Vendor fix CISA ICSA-19-022-01 · 2 productsFacility Explorer 14.6 (released September 2018)
Vendor fix CISA ICSA-19-022-01 · 2 productsFacility Explorer 14.4u1 (released August 2018)
Vendor fix CISA ICSA-19-022-01 · 2 productsFacility Explorer 6.6 (released August 2018)
Mitigation from the vendor CISA ICSA-19-022-01 · 2 productsJohnson Controls has mitigated these vulnerabilities in the following versions. Users should upgrade to one of these product versions (FX14.6 recommended)
Mitigation from the vendor CISA ICSA-19-022-01 · 2 productsFor more information, please refer to Johnson Controls Global Product Security at https://www.johnsoncontrols.com/buildings/specialty-pages/product-security or send an email to productsecurity@jci.comJohnson Controls Services and Support: https://www.johnsoncontrols.com/buildings/hvac-controls
Mitigation from the vendor CISA ICSA-18-191-03 · 2 productsNiagara AX v3.8: Apply Update 4 release (3.8.401)

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedGainSec/CVE-2017-16744-and-CVE-2017-16748-Tridium-Niagara

Sources

NVDCVSS 3.07.2read 2026-10-23
NVDCVSS 2.06.5read 2026-10-23
CNAweakness (CWE)CWE-22read 2026-10-23
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score6.2 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published: 2018-08-20
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-16744?

Is CVE-2017-16744 actively exploited?

Active exploitation of CVE-2017-16744 has not been confirmed. Its EPSS score was 6.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-16744?

CVE-2017-16744 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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