CVE-2017-12089

Micrologix 1400 B Firmware vulnerability

CVSS

8.6

EPSS

5.1%

EPSS pct

91th

Exploited

No known

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.

Affected vendor

Rockwellautomation

Affected product

Micrologix 1400 B Firmware

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Published

2018-04-05

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 5.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2017-12089

Confirm whether Rockwellautomation Micrologix 1400 B Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-12089.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-12089

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-12089 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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