CVE-2017-16740

Name: CVE-2017-16740
Creator: NVD / NIST
Published: 2018-01-09T21:29:00.42+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 7.14%

Last modified Jun 17, 2026

CVE-2017-16740 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 7.14% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

7.14%

93.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Rockwellautomation	1766-L32bxba Firmware	<= 21.002
Rockwellautomation	1766-L32awa Firmware	<= 21.002
Rockwellautomation	1766-L32bxb Firmware	<= 21.002
Rockwellautomation	1766-L32bwaa Firmware	<= 21.002
Rockwellautomation	1766-L32awaa Firmware	<= 21.002
Rockwellautomation	1766-L32bwa Firmware	<= 21.002

References

http://www.securityfocus.com/bid/102474Mitigation, Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-009-01Third Party Advisory, US Government Resource
https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1070883
http://www.securityfocus.com/bid/102474Mitigation, Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-009-01Third Party Advisory, US Government Resource
https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1070883

Timeline

Published: Jan 9, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-16740?

How severe is CVE-2017-16740?

Severity scoring for CVE-2017-16740 is pending analysis. The EPSS model estimates a 7.14% probability of exploitation in the next 30 days.

How do I fix CVE-2017-16740?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-16740?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST