CVE-2019-16278

Name: CVE-2019-16278
Creator: NVD / NIST
Published: 2019-10-14T17:15:09.427+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 99.06%

Last modified Jun 17, 2026

CVE-2019-16278 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Directory Traversal in the function http_verify in nostromo nhttpd through 1.9.6 allows an attacker to achieve remote code execution via a crafted HTTP request.. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.06% chance of exploitation in the next 30 days.

Description

Directory Traversal in the function http_verify in nostromo nhttpd through 1.9.6 allows an attacker to achieve remote code execution via a crafted HTTP request.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

99.06%

99.9th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Nov 28, 2024.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nazgul	Nostromo Nhttpd	< 1.9.7

References

http://packetstormsecurity.com/files/155045/Nostromo-1.9.6-Directory-Traversal-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/155802/nostromo-1.9.6-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://www.nazgul.ch/dev/nostromo_cl.txtRelease Notes
https://git.sp0re.sh/sp0re/Nhttpd-exploitsBroken Link, Exploit, Third Party Advisory
https://sp0re.shBroken Link, Not Applicable
http://packetstormsecurity.com/files/155045/Nostromo-1.9.6-Directory-Traversal-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/155802/nostromo-1.9.6-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://www.nazgul.ch/dev/nostromo_cl.txtRelease Notes
https://git.sp0re.sh/sp0re/Nhttpd-exploitsBroken Link, Exploit, Third Party Advisory
https://sp0re.shBroken Link, Not Applicable
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16278US Government Resource

Timeline

Published: Oct 14, 2019
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2019-16278?

Directory Traversal in the function http_verify in nostromo nhttpd through 1.9.6 allows an attacker to achieve remote code execution via a crafted HTTP request.

How severe is CVE-2019-16278?

CVE-2019-16278 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 99.06% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2019-16278?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-16278?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST