What is CVE-2021-23379?

CVE-2021-23379 is a high-severity vulnerability in Portkiller Project, classified under OS Command Injection. CVSS score: 7.3/10. Published 2021-04-18.

How severe is CVE-2021-23379?

High severity. CVSS v3 base score is 7.3 out of 10.

RCE in Portkiller Project

CVE-2021-23379

This affects all versions of package portkiller. If (attacker-controlled) user input is given, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization.

Vulnerability class: Command Injection (OS Command Injection)

Published 2021-04-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.013 (70.3th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Portkiller Project
Portkiller — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

snyk.io/vuln/SNYK-JS-PORTKILLER-1078537 (Exploit, Third Party Advisory)
github.com/indatawetrust/portkiller/blob/f1f1c5076d9c5d60e8dd3930e98d665d8191aa… (Broken Link)

Frequently asked questions

What is CVE-2021-23379?: CVE-2021-23379 is a high-severity vulnerability in Portkiller Project, classified under OS Command Injection. CVSS score: 7.3/10. Published 2021-04-18.
How severe is CVE-2021-23379?: High severity. CVSS v3 base score is 7.3 out of 10.