CVE-2019-16278

CRITICALNVD 9.89.8—Trending — 3 sources updated this weekExploited in the wild

9.8

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.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 100.0%
KEV: ⚠ Exploited

Published

October 14, 2019

Last Modified

November 6, 2025

Advisory Details (1)

Auto-updated Jun 1, 2026

No patch confirmed yet.

generic

http://www.nazgul.ch/dev/nostromo_cl.txt

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-22Path Traversal

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-07 04:31 UTCEG score recompute
2026-06-07 04:31 UTCGHSA enrichment
2026-06-07 00:17 UTCEG score recompute
2026-06-07 00:17 UTCGHSA enrichment
2026-06-06 20:02 UTCEG score recompute
2026-06-06 20:02 UTCGHSA enrichment
2026-06-06 15:47 UTCEG score recompute
2026-06-06 15:47 UTCGHSA enrichment
2026-06-06 11:32 UTCEG score recompute
2026-06-06 11:32 UTCGHSA enrichment
2026-06-06 07:18 UTCEG score recompute
2026-06-06 07:18 UTCGHSA enrichment
2026-06-06 03:03 UTCEG score recompute
2026-06-06 03:03 UTCGHSA enrichment
2026-06-05 22:49 UTCEG score recompute
2026-06-05 22:49 UTCGHSA enrichment
2026-06-05 22:43 UTCkev_newly_listed
2026-06-05 18:35 UTCEG score recompute
2026-06-05 18:35 UTCGHSA enrichment
2026-06-05 14:21 UTCEG score recompute

Publicly available exploits

(10 references)

Working exploit code is in the public domain (1 Metasploit module) (6 GitHub PoCs) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCandknownmaly/CVE-2019-16278
First seen Nov 26, 2025
RCE exploit for Nostromo nhttpd ≤ 1.9.6
Open source ↗
Exploit-DBEDB-47837✓ verified
First seen Jan 1, 2020
nostromo 1.9.6 - Remote Code Execution
Open source ↗
GitHub PoCaN0mad/CVE-2019-16278-Nostromo_1.9.6-RCE
First seen Nov 26, 2019
Python script to exploit RCE in Nostromo nhttpd <= 1.9.6.
Open source ↗
GitHub PoCAnubisSec/CVE-2019-16278
First seen Nov 22, 2019
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.
Open source ↗
Exploit-DBEDB-47573✓ verified
First seen Nov 1, 2019
Nostromo - Directory Traversal Remote Command Execution (Metasploit)
Open source ↗
Metasploitexploit/multi/http/nostromo_code_exec✓ verified
First seen Oct 20, 2019
Nostromo Directory Traversal Remote Command Execution
Open source ↗
GitHub PoCimjdl/CVE-2019-16278-PoC
First seen Oct 15, 2019
CVE-2019-16728 Proof of Concept
Open source ↗
GitHub PoCjas502n/CVE-2019-16278
First seen Oct 15, 2019
Directory transversal to remote code execution
Open source ↗
GitHub PoCianxtianxt/CVE-2019-16278
First seen Oct 15, 2019
CVE-2019-16278Nostromo httpd命令执行
Open source ↗
Nucleihttp/cves/2019/CVE-2019-16278.yaml
First seen Jan 1, 2019
nostromo 1.9.6 - Remote Code Execution
Open source ↗

Frequently asked(6)

What is CVE-2019-16278?

CVE-2019-16278 is a critical vulnerability published on October 14, 2019. 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.

When was CVE-2019-16278 disclosed?

CVE-2019-16278 was first published in the National Vulnerability Database on October 14, 2019, with the most recent update on November 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-16278 actively exploited?

Yes. CISA added CVE-2019-16278 to the Known Exploited Vulnerabilities catalog on November 7, 2024, affecting Nostromo nhttpd. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2019-16278?

CVE-2019-16278 has a CVSS v3 base score of 9.8 (NVD).

Which products are affected by CVE-2019-16278?

CVE-2019-16278 affects Nostromo nhttpd. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2019-16278?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-16278, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2019-16278

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-16278?

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Frequently asked(6)

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