nmap version 6.49BETA6 through 7.60, up to and including SVN revision 37147 contains a Directory Traversal vulnerability in NSE script http…

published 2018-04-18 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-1865

cvss: 5.7; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits: 0; none known

nmap version 6.49BETA6 through 7.60, up to and including SVN revision 37147 contains a Directory Traversal vulnerability in NSE script http-fetch that can result in file overwrite as the user is running it. This attack appears to be exploitable via a victim that runs NSE script http-fetch against a malicious web site. This vulnerability appears to have been fixed in 7.7.

Patch / fix

distros 1

nmap Debian 14, Debian 13, Debian 12 7.70+dfsg1-1

debian advisories DEBIAN-CVE-2018-1000161

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-1000161 updated 2026-11-05 cvss 5.5

nmap: directory traversal in the way the non-default http-fetch script sanitized URLs

Red Hat Enterprise Linux 5 nmap Red Hat Enterprise Linux 6 nmap, nmap-frontend Red Hat Enterprise Linux 7 nmap, nmap-ncat, nmap-frontend Red Hat Enterprise Linux 8 nmap, nmap-ncat
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.03% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.7	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

nmap.org /changelog.html
vendor-advisory

Sources

CVE List CVE-2018-1000161
NVD CVE-2018-1000161

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