Command Injection in libnmap

published 2018-10-30 8 y ago modified 2026-06-17 4 mo ago also GHSA-7g2w-6r25-2j7p , EUVD-2018-0734

cvss: 9.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 3.9%; EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits: 0; none known

A command injection vulnerability in libnmapp package for versions <0.4.16 allows arbitrary commands to be executed via arguments to the range options.

Patch / fix

fixed in 2

npm libnmap 0.4.16
libnmap_project libnmap 0.4.16

Exploit prediction

3.85% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

hackerone.com https://hackerone.com/reports/390865 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected packages

ecosystem	package	affected	fixed in
npm	libnmap	<0.4.16	0.4.16

Affected products

n/a libnmap

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command
CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

hackerone.com /reports/390865
web, exploit, issue-tracking, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2018-16461
advisory
github.com /advisories/GHSA-7g2w-6r25-2j7p
advisory
github.com /nodejs/security-wg/blob/master/vuln/npm/474.json
web
npmjs.com /advisories/719
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary