No exploitation reported

CVE-2017-16748

No exploitation reported by the sources we read.

Published2018-08-20
WeaknessCWE-287

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 attacker can log into the local Niagara platform (Niagara AX Framework Versions 3.8 and prior or Niagara 4 Framework Versions 4.4 and prior) using a disabled account name and a blank password, granting the attacker administrator access to the Niagara system.

Timeline

dates in UTC

2018-08-2021:29CVE publishedNVD

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-2017-16748?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-16748?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
4.4	≤ 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-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

Mitigation from the vendor CISA ICSA-18-191-03 · 2 productsNiagara AX v3.8: Apply Update 4 release (3.8.401)
Mitigation from the vendor CISA ICSA-18-191-03 · 2 productsNiagara 4 Framework v4.4: Apply Update 1 release (4.4.92.2.1)

Detection

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

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
CNAweakness (CWE)CWE-287read 2026-10-23
NVDweakness (CWE)CWE-287read 2026-10-23
FIRST EPSSEPSS score5.3 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/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-2017-16748?

Is CVE-2017-16748 actively exploited?

Active exploitation of CVE-2017-16748 has not been confirmed. Its EPSS score was 5.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-16748?

CVE-2017-16748 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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