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CVE-2019-19494

8.8 · HIGH

Broadcom based cable modems across multiple vendors are vulnerable to a buffer overflow, which allows a remote attacker to execute arbitrary code at the kernel level via JavaScript run in a victim'…

Published Jan 9, 2020CWE-120EPSS 23.10%

Overview

CVE-2019-19494 is a high-severity vulnerability. It was published on January 9, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Broadcom based cable modems across multiple vendors are vulnerable to a buffer overflow, which allows a remote attacker to execute arbitrary code at the kernel level via JavaScript run in a victim's browser. Examples of affected products include Sagemcom F@st 3890 prior to 50.10.21_T4, Sagemcom F@st 3890 prior to 05.76.6.3f, Sagemcom F@st 3686 3.428.0, Sagemcom F@st 3686 4.83.0, NETGEAR CG3700EMR 2.01.05, NETGEAR CG3700EMR 2.01.03, NETGEAR C6250EMR 2.01.05, NETGEAR C6250EMR 2.01.03, Technicolor TC7230 STEB 01.25, COMPAL 7284E 5.510.5.11, and COMPAL 7486E 5.510.5.11.

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

Refcablehaunt.comGitHubgithub.com/Lyrebirds/Cable-Haunt-Report/releases/download/2.4/report.pdfGitHubgithub.com/Lyrebirds/Fast8690-exploitRefwww.broadcom.comRefcablehaunt.comGitHubgithub.com/Lyrebirds/Cable-Haunt-Report/releases/download/2.4/report.pdfGitHubgithub.com/Lyrebirds/Fast8690-exploitRefwww.broadcom.com

How CyberStrike helps

Frequently asked questions

What is CVE-2019-19494?

CVE-2019-19494 is a high-severity vulnerability. It was published on January 9, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2019-19494?

This vulnerability has a CVSS 3.1 base score of 8.8, 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-2019-19494?

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-2019-19494?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-19494 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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