CVE-2017-16748

highpriority · track · 41EPSS 0.052 · 92 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

5.22% (92nd) EPSS

CVSS 7.5 · high

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationNiagara 4 Frameworkcisa_csaf_ot
Niagara 4 Framework v4.4: Apply Update 1 release (4.4.92.2.1)
MitigationNiagara AX Frameworkcisa_csaf_ot
Niagara 4 Framework v4.4: Apply Update 1 release (4.4.92.2.1)

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.4–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.07.4highCVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.09.3criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-287US

affected products (7)

Products and version ranges known to be affected.

Niagara 4 Framework: Versions 4.4 and priorall versionscisa_csaf_otUS
Niagara AX Framework: Version 3.8 and priorall versionscisa_csaf_otUS
Tridium Niagara 4 Framework≤ 4.4cisa_csaf_otUS
Tridium Niagara AX Framework≤ 3.8cisa_csaf_otUS
ICS-CERT Niagara AX Framework and Niagara 4 Framework≤ Niagara AX Framework Versions 3.8 and prior and Niagara 4 Framework Versions 4.4 and priorenisa_euvdEU
tridium niagara≤ 4.4nvdUScpe:2.3:a:tridium:niagara:*:*:*:*:*:*:*:*
tridium niagara ax framework≤ 3.8nvdUScpe:2.3:a:tridium:niagara_ax_framework:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-18-191-03Tridium Niagara2018-07-10icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to read, write, and delete sensitive files to gain administrator privileges on the Niagara system.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2018-08-20modified 2026-06-17

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references (10)

External citations — patches, advisories, analysis.

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