CVE-2017-16740

critical

Description

A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.

References

https://ics-cert.us-cert.gov/advisories/ICSA-18-009-01

http://www.securityfocus.com/bid/102474

https://thehackernews.com/2026/08/over-4400-rockwell-plcs-exposed-online.html

https://cyberscoop.com/exposed-rockwell-controllers-water-system-attacks/

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1070883

Details

Source: Mitre, NVD

Published: 2018-01-09

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 10

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

Severity: Critical

EPSS

EPSS: 0.00198