CVE-2016-20087

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-19. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

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

Fortitude HTTP 1.0.4.0 contains an unquoted service path vulnerability that allows local users to execute arbitrary code with elevated privileges by exploiting the service binary path. Attackers can insert malicious executables in the system root path that execute with SYSTEM privileges during service startup or system reboot.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
2.2%
KEV
Not listed

Published

June 19, 2026

Last Modified

June 23, 2026

Advisory Details (4)

Auto-updated Jun 22, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Fortitude HTTP 1.0.4.0 Unquoted Service Path Elevation of Privilege | Advisories | VulnCheck

https://www.vulncheck.com/advisories/fortitude-http-unquoted-service-path-elevation-of-privilege
generic🟡 PoC Available

Fortitude HTTP 1.0.4.0 - Unquoted Service Path Privilege Escalation - Windows local Exploit

https://www.exploit-db.com/exploits/40461
generic

Fortitude HTTP - NetworkDLS

http://www.networkdls.com/Software/View/Fortitude_HTTP
generic

Home Page - NetworkDLS

http://www.networkdls.com/

Vendor Advisories for CVE-2016-20087(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 87× 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.

  1. 2026-07-22 22:01 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
  4. 2026-07-21 15:21 UTCEPSS rescore
  5. 2026-07-20 17:03 UTCEPSS rescore
  6. 2026-07-19 14:27 UTCEPSS rescore
  7. 2026-07-18 10:00 UTCEPSS rescore
  8. 2026-07-18 10:00 UTCEPSS rescore
  9. 2026-07-17 00:18 UTCGHSA enrichment
  10. 2026-07-16 16:59 UTCEPSS rescore
  11. 2026-07-16 16:59 UTCEPSS rescore
  12. 2026-07-16 12:54 UTCGHSA enrichment
  13. 2026-07-16 01:31 UTCGHSA enrichment
  14. 2026-07-15 16:54 UTCEPSS rescore
  15. 2026-07-15 16:54 UTCEPSS rescore
  16. 2026-07-15 14:08 UTCGHSA enrichment
  17. 2026-07-15 02:14 UTCGHSA enrichment
  18. 2026-07-14 14:51 UTCGHSA enrichment
  19. 2026-07-14 03:23 UTCGHSA enrichment
  20. 2026-07-13 22:26 UTCEPSS rescore
  21. 2026-07-13 16:00 UTCGHSA enrichment
  22. 2026-07-13 06:09 UTCEPSS rescore
  23. 2026-07-13 04:35 UTCGHSA enrichment
  24. 2026-07-12 16:41 UTCGHSA enrichment
  25. 2026-07-12 05:43 UTCEPSS rescore
Show 71 more
  1. 2026-07-12 05:43 UTCEPSS rescore
  2. 2026-07-12 05:17 UTCGHSA enrichment
  3. 2026-07-11 17:53 UTCGHSA enrichment
  4. 2026-07-11 08:23 UTCEPSS rescore
  5. 2026-07-11 06:30 UTCGHSA enrichment
  6. 2026-07-10 19:04 UTCGHSA enrichment
  7. 2026-07-10 07:38 UTCGHSA enrichment
  8. 2026-07-09 20:10 UTCGHSA enrichment
  9. 2026-07-09 19:05 UTCEPSS rescore
  10. 2026-07-09 08:47 UTCGHSA enrichment
  11. 2026-07-08 21:19 UTCGHSA enrichment
  12. 2026-07-08 15:10 UTCEPSS rescore
  13. 2026-07-08 09:56 UTCGHSA enrichment
  14. 2026-07-07 22:32 UTCGHSA enrichment
  15. 2026-07-07 13:42 UTCEPSS rescore
  16. 2026-07-07 11:09 UTCGHSA enrichment
  17. 2026-07-06 22:53 UTCGHSA enrichment
  18. 2026-07-06 16:24 UTCEPSS rescore
  19. 2026-07-06 16:24 UTCEPSS rescore
  20. 2026-07-06 11:28 UTCGHSA enrichment
  21. 2026-07-06 02:20 UTCEPSS rescore
  22. 2026-07-06 02:20 UTCEPSS rescore
  23. 2026-07-05 23:19 UTCGHSA enrichment
  24. 2026-07-05 11:54 UTCGHSA enrichment
  25. 2026-07-05 00:31 UTCGHSA enrichment
  26. 2026-07-04 13:07 UTCGHSA enrichment
  27. 2026-07-04 06:28 UTCEPSS rescore
  28. 2026-07-04 01:43 UTCGHSA enrichment
  29. 2026-07-03 14:13 UTCGHSA enrichment
  30. 2026-07-03 02:49 UTCGHSA enrichment
  31. 2026-07-02 15:27 UTCGHSA enrichment
  32. 2026-07-02 04:03 UTCGHSA enrichment
  33. 2026-07-01 16:40 UTCGHSA enrichment
  34. 2026-07-01 15:02 UTCEPSS rescore
  35. 2026-07-01 05:17 UTCGHSA enrichment
  36. 2026-06-30 23:19 UTCEPSS rescore
  37. 2026-06-30 17:54 UTCGHSA enrichment
  38. 2026-06-30 06:31 UTCGHSA enrichment
  39. 2026-06-29 19:08 UTCGHSA enrichment
  40. 2026-06-29 14:03 UTCEPSS rescore
  41. 2026-06-29 07:44 UTCGHSA enrichment
  42. 2026-06-28 20:16 UTCGHSA enrichment
  43. 2026-06-28 08:52 UTCGHSA enrichment
  44. 2026-06-28 04:53 UTCEPSS rescore
  45. 2026-06-27 21:30 UTCGHSA enrichment
  46. 2026-06-27 10:07 UTCGHSA enrichment
  47. 2026-06-27 03:05 UTCEPSS rescore
  48. 2026-06-27 03:05 UTCEPSS rescore
  49. 2026-06-26 22:44 UTCGHSA enrichment
  50. 2026-06-26 11:19 UTCGHSA enrichment
  51. 2026-06-25 20:24 UTCGHSA enrichment
  52. 2026-06-25 13:47 UTCEPSS rescore
  53. 2026-06-25 13:47 UTCEPSS rescore
  54. 2026-06-25 09:00 UTCGHSA enrichment
  55. 2026-06-24 21:37 UTCGHSA enrichment
  56. 2026-06-24 14:02 UTCEPSS rescore
  57. 2026-06-24 14:02 UTCEPSS rescore
  58. 2026-06-24 10:13 UTCGHSA enrichment
  59. 2026-06-23 22:46 UTCGHSA enrichment
  60. 2026-06-23 21:30 UTCEPSS rescore
  61. 2026-06-23 11:23 UTCGHSA enrichment
  62. 2026-06-22 23:55 UTCGHSA enrichment
  63. 2026-06-22 19:38 UTCNVD updateCVSS v4 → 8.5
  64. 2026-06-22 12:28 UTCGHSA enrichment
  65. 2026-06-22 01:05 UTCGHSA enrichment
  66. 2026-06-21 13:36 UTCGHSA enrichment
  67. 2026-06-21 02:13 UTCGHSA enrichment
  68. 2026-06-20 14:48 UTCGHSA enrichment
  69. 2026-06-20 03:23 UTCGHSA enrichment
  70. 2026-06-19 15:57 UTCEG score recompute
  71. 2026-06-19 15:57 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2016-20087?
CVE-2016-20087 is a high vulnerability published on June 19, 2026. Fortitude HTTP 1.0.4.0 contains an unquoted service path vulnerability that allows local users to execute arbitrary code with elevated privileges by exploiting the service binary path. Attackers can insert malicious executables in the system root path that execute with SYSTEM privileges during…
When was CVE-2016-20087 disclosed?
CVE-2016-20087 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-20087 actively exploited?
CVE-2016-20087 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-20087?
CVE-2016-20087 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2016-20087?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-20087, 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.

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