CVE-2019-16278

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-11-07), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 99%CVSS: 9.8Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
99%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

October 14, 2019

Last Modified

November 6, 2025

Advisory Details (3)

Auto-updated Sep 24, 2026
No patch confirmed yet.
generic
http://www.nazgul.ch/dev/nostromo_cl.txt
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/155802/nostromo-1.9.6-Remote-Code-Execution.html
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/155045/Nostromo-1.9.6-Directory-Traversal-Remote-Command-Execution.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 49× in last 7d / 204× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 743 total refreshes for this CVE.

  1. 2026-09-25 12:03 UTCGHSA enrichment
  2. 2026-09-25 07:47 UTCGHSA enrichment
  3. 2026-09-25 03:33 UTCGHSA enrichment
  4. 2026-09-24 23:18 UTCGHSA enrichment
  5. 2026-09-24 19:31 UTCCISA KEV update
  6. 2026-09-24 19:04 UTCGHSA enrichment
  7. 2026-09-24 14:50 UTCGHSA enrichment
  8. 2026-09-24 10:34 UTCGHSA enrichment
  9. 2026-09-24 06:18 UTCGHSA enrichment
  10. 2026-09-24 02:03 UTCGHSA enrichment
  11. 2026-09-23 21:49 UTCGHSA enrichment
  12. 2026-09-23 17:35 UTCGHSA enrichment
  13. 2026-09-23 13:21 UTCGHSA enrichment
  14. 2026-09-23 09:07 UTCGHSA enrichment
  15. 2026-09-23 04:53 UTCGHSA enrichment
  16. 2026-09-23 00:39 UTCGHSA enrichment
  17. 2026-09-22 20:24 UTCGHSA enrichment
  18. 2026-09-22 19:36 UTCCISA KEV update
  19. 2026-09-22 16:10 UTCEG score recompute
  20. 2026-09-22 16:10 UTCGHSA enrichment
  21. 2026-09-22 14:43 UTCEPSS rescore
  22. 2026-09-22 11:55 UTCGHSA enrichment
  23. 2026-09-22 07:41 UTCGHSA enrichment
  24. 2026-09-22 03:27 UTCGHSA enrichment
  25. 2026-09-21 23:13 UTCEG score recompute
Show 75 more
  1. 2026-09-21 23:13 UTCGHSA enrichment
  2. 2026-09-21 20:28 UTCEPSS rescore
  3. 2026-09-21 19:09 UTCCISA KEV update
  4. 2026-09-21 18:59 UTCGHSA enrichment
  5. 2026-09-21 14:45 UTCGHSA enrichment
  6. 2026-09-21 10:28 UTCGHSA enrichment
  7. 2026-09-21 06:14 UTCGHSA enrichment
  8. 2026-09-21 02:00 UTCGHSA enrichment
  9. 2026-09-20 21:46 UTCGHSA enrichment
  10. 2026-09-20 17:30 UTCGHSA enrichment
  11. 2026-09-20 13:15 UTCGHSA enrichment
  12. 2026-09-20 08:58 UTCGHSA enrichment
  13. 2026-09-20 04:43 UTCGHSA enrichment
  14. 2026-09-20 00:29 UTCGHSA enrichment
  15. 2026-09-19 20:15 UTCGHSA enrichment
  16. 2026-09-19 16:01 UTCGHSA enrichment
  17. 2026-09-19 11:46 UTCGHSA enrichment
  18. 2026-09-19 07:32 UTCGHSA enrichment
  19. 2026-09-19 03:18 UTCGHSA enrichment
  20. 2026-09-18 23:04 UTCGHSA enrichment
  21. 2026-09-18 19:20 UTCCISA KEV update
  22. 2026-09-18 18:50 UTCGHSA enrichment
  23. 2026-09-18 14:36 UTCGHSA enrichment
  24. 2026-09-18 14:15 UTCCISA KEV update
  25. 2026-09-18 10:22 UTCGHSA enrichment
  26. 2026-09-18 06:08 UTCGHSA enrichment
  27. 2026-09-18 01:53 UTCGHSA enrichment
  28. 2026-09-17 21:39 UTCGHSA enrichment
  29. 2026-09-17 17:25 UTCGHSA enrichment
  30. 2026-09-17 12:56 UTCGHSA enrichment
  31. 2026-09-17 08:40 UTCGHSA enrichment
  32. 2026-09-17 04:26 UTCGHSA enrichment
  33. 2026-09-17 00:11 UTCGHSA enrichment
  34. 2026-09-16 19:57 UTCGHSA enrichment
  35. 2026-09-16 15:43 UTCGHSA enrichment
  36. 2026-09-16 14:10 UTCCISA KEV update
  37. 2026-09-16 11:29 UTCGHSA enrichment
  38. 2026-09-16 07:15 UTCEG score recompute
  39. 2026-09-16 07:15 UTCGHSA enrichment
  40. 2026-09-16 03:00 UTCGHSA enrichment
  41. 2026-09-15 22:46 UTCGHSA enrichment
  42. 2026-09-15 18:29 UTCGHSA enrichment
  43. 2026-09-15 14:15 UTCGHSA enrichment
  44. 2026-09-15 10:00 UTCGHSA enrichment
  45. 2026-09-15 05:45 UTCEG score recompute
  46. 2026-09-15 05:45 UTCGHSA enrichment
  47. 2026-09-15 03:05 UTCEPSS rescore
  48. 2026-09-15 01:31 UTCGHSA enrichment
  49. 2026-09-14 21:17 UTCGHSA enrichment
  50. 2026-09-14 19:24 UTCCISA KEV update
  51. 2026-09-14 17:02 UTCGHSA enrichment
  52. 2026-09-14 12:47 UTCGHSA enrichment
  53. 2026-09-14 08:33 UTCGHSA enrichment
  54. 2026-09-14 04:19 UTCGHSA enrichment
  55. 2026-09-14 00:05 UTCGHSA enrichment
  56. 2026-09-13 19:51 UTCGHSA enrichment
  57. 2026-09-13 15:36 UTCGHSA enrichment
  58. 2026-09-13 11:18 UTCGHSA enrichment
  59. 2026-09-13 07:04 UTCGHSA enrichment
  60. 2026-09-13 02:50 UTCGHSA enrichment
  61. 2026-09-12 22:35 UTCGHSA enrichment
  62. 2026-09-12 18:21 UTCEG score recompute
  63. 2026-09-12 18:21 UTCGHSA enrichment
  64. 2026-09-12 14:56 UTCEPSS rescore
  65. 2026-09-12 14:07 UTCGHSA enrichment
  66. 2026-09-12 09:53 UTCGHSA enrichment
  67. 2026-09-12 05:39 UTCGHSA enrichment
  68. 2026-09-12 01:25 UTCGHSA enrichment
  69. 2026-09-11 21:11 UTCGHSA enrichment
  70. 2026-09-11 18:49 UTCCISA KEV update
  71. 2026-09-11 16:57 UTCGHSA enrichment
  72. 2026-09-11 12:42 UTCGHSA enrichment
  73. 2026-09-11 08:26 UTCGHSA enrichment
  74. 2026-09-11 04:12 UTCGHSA enrichment
  75. 2026-09-10 23:58 UTCGHSA enrichment

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 ↗

Related CVEs(same CWE)

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

Explore the affected products and dependency analysis for CVE-2019-16278

Explore →

Is Your Infrastructure Affected by CVE-2019-16278?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs