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Exploited. On CISA's list since 2022-01-18.
CVE-2021-21315 · Npm package System Information Library for Node.JS · Published 2021-02-16
7.8 out of 10
CVSS rates it high.
91%
Estimated chance of exploitation in the next 30 days, among the top 1% of all scored flaws (EPSS, 2026-10-29).
Yes
CISA has seen it exploited in real attacks. For US government agencies the fix is deadline passed 1732 days ago (2022-02-01).
Apply updates per vendor instructions.
In this vulnerability, an attacker can send a malicious payload that will exploit the name parameter. After successful exploitation, attackers can execute remote.
The System Information Library for Node.JS (npm package "systeminformation") is an open source collection of functions to retrieve detailed hardware, system and OS information. In systeminformation before version 5.3.1 there is a command injection vulnerability. Problem was fixed in version 5.3.1. As a workaround instead of upgrading, be sure to check or sanitize service parameters that are passed to si.inetLatency(), si.inetChecksite(), si.services(), si.processLoad() ... do only allow strings, reject any arrays. String sanitation works as expected.
From the NVD.
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Input changes a command that the server runs through its operating system.
CWE-78 · CISA KEV; NVD record: nvd@nist.gov; NVD record: security-advisories@github.com
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Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.