CVE-2019-18261: Critical severity omron plc cj firmware vulnerability

Published Dec 16, 2019
·
Updated

In Omron PLC CS series, all versions, Omron PLC CJ series, all versions, and Omron PLC NJ series, all versions, the software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame, making it more susceptible to brute force attacks.

Affected Software

3 affected components
Omron Plc Cj Firmware
Omron Plc Cs Firmware
Omron Plc Nj Firmware

Event History

Dec 16, 2019
CVE Published
via MITRE·07:27 PM
Data Sourced
via MITRE·07:27 PM
DescriptionWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2019-18261?

The severity of CVE-2019-18261 is critical with a severity value of 9.8.

2

Which Omron PLC series and versions are affected by CVE-2019-18261?

CVE-2019-18261 affects Omron PLC CS series (all versions), Omron PLC CJ series (all versions), and Omron PLC NJ series (all versions).

3

What is the vulnerability in CVE-2019-18261?

CVE-2019-18261 is a vulnerability that allows multiple failed authentication attempts within a short time frame, making it vulnerable to brute force attacks.

4

How can I prevent the vulnerability in CVE-2019-18261?

To prevent the vulnerability in CVE-2019-18261, ensure that the software implements sufficient measures to prevent multiple failed authentication attempts within a short time frame.

5

Are there any references for more information about CVE-2019-18261?

Yes, you can find more information about CVE-2019-18261 at https://www.us-cert.gov/ics/advisories/icsa-19-346-03.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203