CVE-2016-20090

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
7.8EG
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: None knownExposed: 0

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

Comodo Dragon Browser versions up to 52.15.25.663 contain a privilege escalation vulnerability in the DragonUpdater service due to an unquoted service path running with SYSTEM privileges. A local attacker can insert a malicious executable in the service path and execute arbitrary code with elevated privileges upon service restart or system reboot.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

June 19, 2026

Last Modified

June 22, 2026

Advisory Details (3)

Auto-updated Jun 22, 2026
No patch confirmed yet.
generic

Comodo Dragon Browser 52.15.25.663 Privilege Escalation via Unquoted Service Path | Advisories | VulnCheck

https://www.vulncheck.com/advisories/comodo-dragon-browser-privilege-escalation-via-unquoted-service-path
generic
https://www.comodo.com/home/browsers-toolbars/browser.php
generic
https://www.comodo.com

Vendor Advisories for CVE-2016-20090(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 21× in last 7d / 91× 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 184 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2016-20090?
CVE-2016-20090 is a high vulnerability published on June 19, 2026. Comodo Dragon Browser versions up to 52.15.25.663 contain a privilege escalation vulnerability in the DragonUpdater service due to an unquoted service path running with SYSTEM privileges. A local attacker can insert a malicious executable in the service path and execute arbitrary code with elevated…
When was CVE-2016-20090 disclosed?
CVE-2016-20090 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-20090 actively exploited?
CVE-2016-20090 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 92.6% of all scored CVEs.
What is the CVSS score of CVE-2016-20090?
CVE-2016-20090 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2016-20090?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-20090, 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

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