# CVE-2020-7752: systeminformation command injection in inetChecksite()

Source: https://junglewise.ai/threats/cve-2020-7752-systeminformation-command-injection-in-inetchecksite  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2020-10-27. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2020-7752 · Severity: low · CVSS 3.1 · Published 2020-10-27

systeminformation is a popular Node.js library used to gather system and network information. A command injection vulnerability in the inetChecksite() function allows attackers to execute arbitrary system commands if unsanitized service parameters are passed to it, potentially compromising the host system and enabling data theft or lateral movement.

Technologies: [systeminformation (npm)](https://junglewise.ai/threats/technologies/systeminformation). Vendors: [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2020-7752 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2020-7752 being exploited in the wild.

**How severe is CVE-2020-7752?** Low severity, with a CVSS score of 3.1, published 27 October 2020.

**Which products and versions are affected?** systeminformation (npm) SEMVER:introduced=0,fixed=4.27.11.

**Is there a fix for CVE-2020-7752?** Yes. systeminformation (npm): upgrade to 4.27.11 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2020-7752 attacked?** It is attacked over the network.

**Am I affected by CVE-2020-7752?** Check whether you run systeminformation (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- systeminformation (npm): upgrade to 4.27.11 or later

  ```sh
  npm install systeminformation@4.27.11
  ```


## Technical details

A command injection vulnerability (CWE-78) exists in systeminformation versions before 4.27.11, specifically in the inetChecksite() function. The vulnerability stems from insufficient sanitization of service parameter strings that are passed to shell commands. An attacker with appropriate access to supply parameters to the affected function can inject arbitrary shell metacharacters to execute unauthorized commands on the system. The fix involved implementing proper shell string sanitization. All versions prior to 4.27.11 are affected; users should upgrade immediately.

## Affected products

- systeminformation systeminformation <4.27.11

## Identifiers

- CVE-2020-7752
- GHSA-94xh-2fmc-xf5j

## Timeline

- 2020-10-27: disclosed
- 2020-10-27: patched: Version 4.27.11 released with shell string sanitization fix

## References

- [https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-94xh-2fmc-xf5j](https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-94xh-2fmc-xf5j)

## Related threats

- [systeminformation prototype pollution in networkStats](https://junglewise.ai/threats/cve-2026-116674-systeminformation-is-a-system-and-os-information-library-for)
- [systeminformation has path traversal in Linux networkStats() that allows symlink-based file disclosure outside /sys/class/net](https://junglewise.ai/threats/cve-2026-116673-systeminformation-is-a-system-and-os-information-library-for)
- [systeminformation PowerShell command injection via Unicode quotation marks](https://junglewise.ai/threats/cve-2026-116576-systeminformation-is-a-system-and-os-information-library-for)
- [sebhildebrandt systeminformation OS command injection in networkInterfaces](https://junglewise.ai/threats/cve-2026-50289-sebhildebrandt-systeminformation-os-command-injection-in)
- [sebhildebrandt systeminformation command injection in networkInterfaces](https://junglewise.ai/threats/cve-2026-44724-sebhildebrandt-systeminformation-command-injection-in)