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CVE-2018-14821

7.5 · HIGH

Rockwell Automation RSLinx Classic Versions 4.00.01 and prior.

Published Sep 20, 2018CWE-122EPSS 4.50%

Overview

CVE-2018-14821 is a high-severity vulnerability. It was published on September 20, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. This vulnerability may allow a remote, unauthenticated threat actor to intentionally send a malformed CIP packet to Port 44818, causing the RSLinx Classic application to terminate. The user will need to manually restart the software to regain functionality.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refics-cert.us-cert.gov/advisories/ICSA-18-263-02Refwww.tenable.com/security/research/tra-2018-26Refics-cert.us-cert.gov/advisories/ICSA-18-263-02Refwww.tenable.com/security/research/tra-2018-26

How CyberStrike helps

Frequently asked questions

What is CVE-2018-14821?

CVE-2018-14821 is a high-severity vulnerability. It was published on September 20, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2018-14821?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-14821?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-14821?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-14821 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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