Applied Cybernetics Group
Threat intel → detection pipeline
Tuesday, July 14, 2026
Data as of 20:11 UTC

Nostromo nhttpd Directory Traversal Vulnerability

Added to KEV
2024-11-07
Federal due date
2024-11-28
Vendor
Nostromo
Product
nhttpd
EPSS
99.9th percentile (score 0.991, as of 2026-07-13)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2019-16278

CISA short description

Nostromo nhttpd contains a directory traversal vulnerability in the http_verify() function in a non-chrooted nhttpd server allowing for remote code execution.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.