CVE-2021-21315 HIGH

CVE-2021-21315: Command Injection Vulnerability

Vendor Sebhildebrandt
Product systeminformation
Weakness CWE-78
KEV Status Known Exploited
Published February 16, 2021
Last update October 21, 2025
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

CISA mandated remediation

02CISA Required Action

Apply updates per vendor instructions.

Key dates

03Disclosure timeline

February 16, 2021 CVE published
October 21, 2025 Record updated