CVE-2021-21315— Command Injection Vulnerability
Quick assessment
Affected
sebhildebrandt systeminformation
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Systeminformation中存在操作系统命令注入漏洞，该漏洞源于外部输入数据构造操作系统可执行命令过程中，网络系统或产品未正确过滤其中的特殊字符、命令等。攻击者可利用该漏洞执行非法操作系统命令。
Public Exploits 1
Nuclei · 1
CVE-2021-21315.yaml [template]
In-the-Wild Activity Observed
cisa_kev · confirmed
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I. Basic Information for CVE-2021-21315
Vulnerability Information
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Vulnerability Title
Command Injection Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Systeminformation 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Systeminformation中存在操作系统命令注入漏洞，该漏洞源于外部输入数据构造操作系统可执行命令过程中，网络系统或产品未正确过滤其中的特殊字符、命令等。攻击者可利用该漏洞执行非法操作系统命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| sebhildebrandt | systeminformation | < 5.3.1 | - |
|
II. Public POCs for CVE-2021-21315
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | CVE 2021-21315 PoC | https://github.com/ForbiddenProgrammer/CVE-2021-21315-PoC | POC Details |
| 2 | None | https://github.com/cherrera0001/CVE-2021-21315v2 | POC Details |
| 3 | systeminformation | https://github.com/MazX0p/CVE-2021-21315-exploit | POC Details |
| 4 | None | https://github.com/alikarimi999/CVE-2021-21315 | POC Details |
| 5 | rust noob tried write easy exploit code with rust lang | https://github.com/G01d3nW01f/CVE-2021-21315 | POC Details |
| 6 | None | https://github.com/xMohamed0/CVE-2021-21315-POC | POC Details |
| 7 | Node.JS System Information Library System before version 5.3.1 is susceptible to remote command injection. Node.JS (npm package "systeminformation") is an open source collection of functions to retrieve detailed hardware, system and OS information. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21315.yaml | POC Details |
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Patches & Fixes for CVE-2021-21315 (1)
Vendor Advisories for CVE-2021-21315 (2)
-
https://security.netapp.com/advisory/ntap-20210312-0007/ x_refsource_CONFIRM
Mailing List Discussions for CVE-2021-21315 (1)
-
[GitHub] [cordova-cli] iva2k opened a new issue #549: update systeminformation package to >=5.3.1-Apache Mail Archives mailing-list x_refsource_MLIST
Other References for CVE-2021-21315 (1)
-
https://www.npmjs.com/package/systeminformation x_refsource_MISC
IV. Related Vulnerabilities
Same product: systeminformation
-
CVE-2026-50289
systeminformation: OS command injection in networkInterfaces -
CVE-2026-44724
systeminformation: Linux command injection in networkInterfa -
CVE-2026-26318
systeminformation has Command Injection via Unsanitized `loc -
CVE-2026-26280
Systeminformation has a Command Injection via unsanitized in -
CVE-2025-68154
Command Injection in fsSize() on Windows
Same vendor: sebhildebrandt
-
CVE-2026-50289
systeminformation: OS command injection in networkInterfaces -
CVE-2026-44724
systeminformation: Linux command injection in networkInterfa -
CVE-2026-26318
systeminformation has Command Injection via Unsanitized `loc -
CVE-2026-26280
Systeminformation has a Command Injection via unsanitized in -
CVE-2025-68154
Command Injection in fsSize() on Windows
Same weakness: CWE-78
-
CVE-2026-105134
Ahsay AhsayCBS Replication Receiver UpdateReceivers.do os co -
CVE-2026-75937
OS Command Injection in Digi Accelerated Linux (DAL OS) -
CVE-2026-104019
OS command injection in the Studio Space startup validation -
CVE-2026-104859
Nx: OS command injection in the @nx/docker release pipeline -
CVE-2026-93698
Multilang adminbin验证不足致任意命令执行
V. Comments for CVE-2021-21315
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