Is CVE-2021-21315 in the CISA KEV catalog?

Yes. CVE-2021-21315 is on the CISA Known Exploited Vulnerabilities list, added 2022-01-18.

What is the CVSS severity of CVE-2021-21315?

CVE-2021-21315 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2021-21315?

CVE-2021-21315 has an EPSS score of 90.24% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-21315?

Upgrade systeminformation to 5.3.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-21315

HIGHCISA KEVEPSS 100th pctl

7.1

CVSS v3

NVD

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.

CWE-78OS Command Injection

How to fix

Remediation Available

systeminformationNVD

Affected:< 5.3.1Fixed in:5.3.1CVE-2021-21315derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

90.24%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

System Information Library for Node.JS Command Injection

In this vulnerability, an attacker can send a malicious payload that will exploit the name parameter. After successful exploitation, attackers can execute remote.

Apply updates per vendor instructions.

Remediation due: 2022-02-01

References

Patch1

github.com

Third-Party Advisory2

Government Resource1

cisa.gov

Issue Tracking1

lists.apache.org

Product1

npmjs.com

Related Vulnerabilities

Other CWE-78 (OS Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2014-6271	Critical	9.8	100%	KEV	Fix
CVE-2019-16920	Critical	9.8	100%	KEV	-
CVE-2022-44877	Critical	9.8	100%	KEV	Fix
CVE-2020-8515	Critical	9.8	100%	KEV	-
CVE-2020-9054	Critical	9.8	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-24.