Is CVE-2017-12089 actively exploited?

No active exploitation of CVE-2017-12089 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-12089 be exploited remotely?

Yes. CVE-2017-12089 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-12089?

CVE-2017-12089 has a CVSS score of 8.6 (HIGH).

HOME VULNERABILITIESCVE-2017-12089

HIGH

CVE-2017-12089

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

8.6

CVSS v3.1

Official Description

An exploitable denial of service vulnerability exists in the program download functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a device fault resulting in halted operations. An attacker can send an unauthenticated packet to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2017-12089 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 availability disruption (denial of service), with a CVSS base score of 8.6.

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.