CVE-2017-16744

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.

Published: 2018-08-20 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-16744 is rated High Risk (65.3/100): CVSS High severity, with high exploitation likelihood (EPSS 19.57%, 95th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.08% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-16744

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-22 16.48% 19.57% +3.08%
2 2026-03-06 17.18% 16.48% -0.70%
3 2025-07-21 — 17.18% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-16744

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 [email protected]
6.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 6.4 [email protected]

Weakness enumeration for CVE-2017-16744

Affected software / configurations for CVE-2017-16744

Vendor Product Version Raw CPE
tridium niagara >= 4.0, <= 4.4 cpe:2.3:a:tridium:niagara:*:*:*:*:*:*:*:*
tridium niagara_ax_framework <= 3.8 cpe:2.3:a:tridium:niagara_ax_framework:*:*:*:*:*:*:*:*

References for CVE-2017-16744

URL Tags
http://www.securityfocus.com/bid/105101 Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-191-03 Third Party Advisory US Government Resource VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-19-022-01
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