How severe is CVE-2018-3954?

This vulnerability has a severity rating of HIGH with a CVSS score of 7.2 out of 10.

What type of vulnerability is CVE-2018-3954?

This is classified as CWE-78, which is a common weakness in software security.

CVE-2018-3954 - HIGH Severity | CVSS 7.2

Vulnerability Description

Devices in the Linksys ESeries line of routers (Linksys E1200 Firmware Version 2.0.09 and Linksys E2500 Firmware Version 3.0.04) are susceptible to OS command injection vulnerabilities due to improper filtering of data passed to and retrieved from NVRAMData entered into the 'Router Name' input field through the web portal is submitted to apply.cgi as the value to the 'machine_name' POST parameter. When the 'preinit' binary receives the SIGHUP signal it enters a code path that calls a function named 'set_host_domain_name' from its libshared.so shared object.

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