Is CVE-2017-14470 actively exploited?

No active exploitation of CVE-2017-14470 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-14470 be exploited remotely?

Yes. CVE-2017-14470 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-14470?

CVE-2017-14470 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2017-14470

CRITICAL

CVE-2017-14470

NVD-CWE-noinfoPublished: April 5, 2018· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE or PROG or RUN Description: The value 0xffffffff is considered NaN for the Float data type. When a float is set to this value and used in the PLC, a fault is triggered. NOTE: This is not possible through RSLogix.

NVD Source

Technical Analysis

CVE-2017-14470 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.