CVE-2016-20086

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-19. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this weekElevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: Elevated riskExposed: 0

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

Vembu StoreGrid 4.0 contains an unquoted service path vulnerability in the RemoteBackup and RemoteBackup_webServer services that allows local attackers to escalate privileges. Attackers can place a malicious executable in the unquoted path and restart the service to execute code with LocalSystem privileges.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
51(Track*)
EG Risk 51/100SSVC: Track*

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
Severity78% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

June 19, 2026

Last Modified

July 28, 2026

Advisory Details (2)

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

Vembu StoreGrid 4.0 Unquoted Service Path Privilege Escalation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/vembu-storegrid-unquoted-service-path-privilege-escalation
generic🟡 PoC Available

Vembu StoreGrid 4.0 - Unquoted Service Path Privilege Escalation - Windows local Exploit

https://www.exploit-db.com/exploits/40582

Vendor Advisories for CVE-2016-20086(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 23× in last 7d / 100× 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 189 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2016-20086?
CVE-2016-20086 is a high vulnerability published on June 19, 2026. Vembu StoreGrid 4.0 contains an unquoted service path vulnerability in the RemoteBackup and RemoteBackup_webServer services that allows local attackers to escalate privileges. Attackers can place a malicious executable in the unquoted path and restart the service to execute code with LocalSystem…
When was CVE-2016-20086 disclosed?
CVE-2016-20086 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-20086 actively exploited?
CVE-2016-20086 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.5% of all scored CVEs.
What is the CVSS score of CVE-2016-20086?
CVE-2016-20086 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2016-20086?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-20086, 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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