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CVE-2021-21315

7.1 · HIGHActively Exploited

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.

Published Feb 16, 2021CWE-78EPSS 90.67%

Overview

CVE-2021-21315 is a high-severity vulnerability. It was published on February 16, 2021 and has a CVSS 3.1 base score of 7.1 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/sebhildebrandt/systeminformation/commit/07daa05fb06f24f96297abaa30c2ace8bfd8b525GitHubgithub.com/sebhildebrandt/systeminformation/security/advisories/GHSA-2m8v-572m-ff2vReflists.apache.org/thread.html/r8afea9a83ed568f2647cccc6d8d06126f9815715ddf9a4d479b26b05%40%3Cissues.cordova.apache.org%3ERefsecurity.netapp.com/advisory/ntap-20210312-0007/Refwww.npmjs.com/package/systeminformationGitHubgithub.com/sebhildebrandt/systeminformation/commit/07daa05fb06f24f96297abaa30c2ace8bfd8b525GitHubgithub.com/sebhildebrandt/systeminformation/security/advisories/GHSA-2m8v-572m-ff2vReflists.apache.org/thread.html/r8afea9a83ed568f2647cccc6d8d06126f9815715ddf9a4d479b26b05%40%3Cissues.cordova.apache.org%3ERefsecurity.netapp.com/advisory/ntap-20210312-0007/Refwww.npmjs.com/package/systeminformation

How CyberStrike helps

Frequently asked questions

What is CVE-2021-21315?

CVE-2021-21315 is a high-severity vulnerability. It was published on February 16, 2021 and has a CVSS 3.1 base score of 7.1 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2021-21315?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-21315?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-21315?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-21315 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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