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 9× in last 7d / 33× 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 216 total refreshes for this CVE.

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

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 92.7% 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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