CVE-2019-16278
KEVNostromo nhttpd Directory Traversal Vulnerability
Description
Nostromo nhttpd contains a directory traversal vulnerability in the http_verify() function in a non-chrooted nhttpd server allowing for remote code execution.
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 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HPublishedOct 14, 2019
Last modifiedJun 17, 2026
Added to KEVNov 7, 2024
Remediation dueNov 28, 2024
References
- packetstormsecurity.com/files/155045/Nostromo-1.9.6-Directory-Traversal-Remote-Command-Execution.htmlExploitThird Party Advisory
- packetstormsecurity.com/files/155802/nostromo-1.9.6-Remote-Code-Execution.htmlExploitThird Party Advisory
- nazgul.ch/dev/nostromo_cl.txtRelease Notes
- git.sp0re.sh/sp0re/Nhttpd-exploitsBroken LinkExploit
- sp0re.shBroken LinkNot Applicable
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16278US Government Resource
0 recent articles mention this CVE
89
Risk assessment · Critical
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 699 days
- CVSS
- 9.8 CRITICAL
- EPSS (30-day exploit probability)
- 99.0% · top 1% of all CVEs
- Weakness
- CWE-22
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.