CVE-2021-23360: This affects the package killport before 1.0.2

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HIGH 7.5UPGRADE

CVE-2021-23360 is a high-severity flaw (CVSS 7.5) affecting killport. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

This affects the package killport before 1.0.2. 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. Running this PoC will cause the command touch success to be executed, leading to the creation of a file called success.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.3% (top 16%)
CISA exploited list	No
Weakness	CWE-78
Published	2021-03-21
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: killport project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-03-21 16:15 UTCPublished CVE record published
2026-06-17 03:38 UTCUpdated Record last modified

killport project killport UPGRADE

Affected: < 1.0.2

Fixed in: 1.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls killport

2. UPGRADE to 1.0.2

npm install killport@">=1.0.2"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-23360?

killport: upgrade to 1.0.2. Exact commands for each OS are on this page.

Is CVE-2021-23360 being exploited?

CVE-2021-23360 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-23360 affect?

CVE-2021-23360 affects killport. Severity is high (CVSS 7.5). This affects the package killport before 1.0.2. 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. Ru

How urgent is CVE-2021-23360?

Priority 52/100. High severity; Public exploit reference

References

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