How severe is CVE-2018-1000161?

CVE-2018-1000161 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-1000161 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000161?

CVE-2018-1000161 primarily affects Nmap. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-1000161?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-1000161 published?

CVE-2018-1000161 was published on 2018-04-18 and last updated on 2026-06-17.

CVE-2018-1000161

CVE-2018-1000161 is a medium-severity vulnerability in Nmap with a CVSS 3.x base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
CVSS v2: 3.5
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Nmap
Published: 2018-04-18
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-1000161?: 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.
How severe is CVE-2018-1000161?: CVE-2018-1000161 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-1000161 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000161?: CVE-2018-1000161 primarily affects Nmap. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-1000161?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-1000161 published?: CVE-2018-1000161 was published on 2018-04-18 and last updated on 2026-06-17.

References

https://nmap.org/changelog.html

Affected products (13)

cpe:2.3:a:nmap:nmap:6.49:beta6:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.00:*:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.01:*:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.10:*:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.11:*:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.12:*:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.25:beta1:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.25:beta2:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.30:*:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.31:*:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.40:*:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.50:*:*:*:*:*:*:*
cpe:2.3:a:nmap:nmap:7.60:*:*:*:*:*:*:*

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