Nostromo nhttpd Directory Traversal Vulnerability
n/a — n/a
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.
9.8
99.0%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- Oct 14, 2019
- Modified
- Jun 17, 2026
- Added to KEV
- Nov 7, 2024
- Federal patch due
- Nov 28, 2024
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
8 foundWeaponization
Public repositories whose name or description references CVE-2019-16278, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
- jas502n/CVE-2019-16278★ 70
Directory transversal to remote code execution
updated Feb 6, 2026
- imjdl/CVE-2019-16278-PoC★ 9
CVE-2019-16728 Proof of Concept
updated May 13, 2025
- AnubisSec/CVE-2019-16278★ 8
A quick python exploit for the Nostromo 1.9.6 remote code execution vulnerability. Simply takes a host and port that the web server is running on.
updated Apr 17, 2025
- aN0mad/CVE-2019-16278-Nostromo_1.9.6-RCE★ 6
Python script to exploit RCE in Nostromo nhttpd <= 1.9.6.
updated Sep 5, 2024
- ianxtianxt/CVE-2019-16278★ 3
CVE-2019-16278Nostromo httpd命令执行
updated Oct 14, 2025
- andknownmaly/CVE-2019-16278★ 3
PoC RCE exploit for Nostromo nhttpd ≤ 1.9.6
updated Jun 18, 2026
- darkerego/Nostromo_Python3★ 1
CVE-2019-16278 Python3 Exploit Code
updated Sep 9, 2023
- Kr0ff/cve-2019-16278★ 1
(Nhttpd) Nostromo 1.9.6 RCE due to Directory Traversal
updated Feb 19, 2020
References
How this class of flaw gets exploited
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 base score of 9.8 out of 10 (CVSS 3.1).
Is CVE-2019-16278 actively exploited in the wild?
Yes. CVE-2019-16278 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Nov 7, 2024, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2019-16278?
99.0% - meaning FIRST.org's EPSS model estimates a 99.0% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2019-16278?
Yes - a public Nuclei template referencing CVE-2019-16278 exist in public repositories we checked. We also found 8 public GitHub repositories referencing this CVE.
What type of vulnerability is CVE-2019-16278?
CVE-2019-16278 is classified under CWE-22 (CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')).
Cross-checked against
Impactr finds and proves whether CVE-2019-16278 - or flaws like it - are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.
Join the waitlist