How severe is CVE-2017-12089?

CVE-2017-12089 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-12089 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-12089?

CVE-2017-12089 affects Rockwellautomation Micrologix 1400 B Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-12089?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-12089 published?

CVE-2017-12089 was published on 2018-04-05 and last updated on 2026-06-17.

CVE-2017-12089

CVE-2017-12089 is a high-severity vulnerability in Rockwellautomation Micrologix 1400 B Firmware with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 7.8
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Rockwellautomation Micrologix 1400 B Firmware
Published: 2018-04-05
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2017-12089?: 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.
How severe is CVE-2017-12089?: CVE-2017-12089 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-12089 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-12089?: CVE-2017-12089 affects Rockwellautomation Micrologix 1400 B Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-12089?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-12089 published?: CVE-2017-12089 was published on 2018-04-05 and last updated on 2026-06-17.

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0441

Affected products (1)

cpe:2.3:o:rockwellautomation:micrologix_1400_b_firmware:*:*:*:*:*:*:*:*

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