CVE-2021-21315

HighCVSS 7.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Feb 16, 2021
Last modified
Jun 17, 2026
Added to CISA KEV
Jan 18, 2022
NVD status
Analyzed

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CVE-2021-21315: High severity, CVSS 7.8 | Vulnix