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High · 7.1 Known exploited Scanner template Public exploit CVE-2021-21315 EUVD-2021-0527GHSA-2m8v-572m-ff2v

Command Injection Vulnerability

Published Feb 16, 2021 · Updated Oct 21, 2025 · Assigned by GitHub_M

Vendor: sebhildebrandt Product: systeminformation Package: systeminformation Ecosystem: npm

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.

Affected products

VendorProductAffectedFixed
sebhildebrandt systeminformation < 5.3.1 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 6 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Affected packages

EcosystemPackageAffectedFixedRecord
npm systeminformation < 5.3.1 5.3.1 GHSA-2m8v-572m-ff2v

References