CVE-2017-14467

CVE-2017-14467 is a critical-severity vulnerability in Rockwellautomation Micrologix 1400 B Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 37% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

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 Description: Live rung edits are able to be made by an unauthenticated user allowing for addition, deletion, or modification of existing ladder logic. Additionally, faults and cpu state modification can be triggered if specific ladder logic is used.

Frequently asked questions

What is CVE-2017-14467?
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 Description: Live rung edits are able to be made by an unauthenticated user allowing for addition, deletion, or modification of existing ladder logic. Additionally, faults and cpu state modification can be triggered if specific ladder logic is used.
How severe is CVE-2017-14467?
CVE-2017-14467 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-14467 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 37% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-14467?
CVE-2017-14467 affects Rockwellautomation Micrologix 1400 B Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-14467?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-14467 published?
CVE-2017-14467 was published on 2018-04-05 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Rockwellautomation Micrologix 1400 B Firmware

All CVEs affecting Rockwellautomation Micrologix 1400 B Firmware →