CVE-2019-16278
9.8, critical Known exploitedNostromo nhttpd Directory Traversal Vulnerability
- CVSS
- 9.8, critical critical CVSS v3.1
- EPSS, next 30 days
- 99% higher than 99.9% of scored CVEs
- Exploitation
- Confirmed in the wild
- Published
- 14 Oct 20197 years ago
Known exploited
CISA added this to the Known Exploited Vulnerabilities Catalog on 7 Nov 2024. US federal agencies had to remediate by 28 Nov 2024, a deadline that has passed.
Required action. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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.
Details
- Vendor
- Nostromo
- Product
- nostromo_nhttpd
- Weakness
- CWE-22 (opens in a new tab)
- Status
- Analyzed
- Updated
- 17 Jun 2026
- Assigner
- cve@mitre.org
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References 6
Exploit code 3
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Beyond this page
Is CVE-2019-16278 in your network?
This page tells you how dangerous CVE-2019-16278 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
CVE-2019-16278 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.
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EXYS7600 OCELOT
Find it before attackers do
Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2019-16278 comes with the devices to patch.
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EXYS7950 KONDRA
Detect it if it's exploited
Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
Learn more about EXYS7950 KONDRA
Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.