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
7.8
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.

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)
EPSS
2.4%
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 15× in last 7d / 86× 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. 2026-07-19 02:26 UTCEPSS rescore
  8. 2026-07-19 02:26 UTCEPSS rescore
  9. 2026-07-18 10:00 UTCEPSS rescore
  10. 2026-07-18 10:00 UTCEPSS rescore
  11. 2026-07-17 03:36 UTCGHSA enrichment
  12. 2026-07-16 16:59 UTCEPSS rescore
  13. 2026-07-16 16:59 UTCEPSS rescore
  14. 2026-07-16 15:08 UTCGHSA enrichment
  15. 2026-07-16 02:25 UTCGHSA enrichment
  16. 2026-07-15 16:54 UTCEPSS rescore
  17. 2026-07-15 16:54 UTCEPSS rescore
  18. 2026-07-15 14:08 UTCGHSA enrichment
  19. 2026-07-15 01:56 UTCEPSS rescore
  20. 2026-07-15 01:56 UTCEPSS rescore
  21. 2026-07-15 01:11 UTCGHSA enrichment
  22. 2026-07-14 12:54 UTCGHSA enrichment
  23. 2026-07-14 00:36 UTCGHSA enrichment
  24. 2026-07-13 22:26 UTCEPSS rescore
  25. 2026-07-13 12:19 UTCGHSA enrichment
Show 70 more
  1. 2026-07-12 23:49 UTCGHSA enrichment
  2. 2026-07-12 11:31 UTCGHSA enrichment
  3. 2026-07-12 05:43 UTCEPSS rescore
  4. 2026-07-12 05:43 UTCEPSS rescore
  5. 2026-07-11 23:12 UTCGHSA enrichment
  6. 2026-07-11 10:51 UTCGHSA enrichment
  7. 2026-07-11 08:23 UTCEPSS rescore
  8. 2026-07-10 22:34 UTCGHSA enrichment
  9. 2026-07-10 10:06 UTCGHSA enrichment
  10. 2026-07-09 21:49 UTCGHSA enrichment
  11. 2026-07-09 19:05 UTCEPSS rescore
  12. 2026-07-09 09:25 UTCGHSA enrichment
  13. 2026-07-08 21:07 UTCGHSA enrichment
  14. 2026-07-08 15:10 UTCEPSS rescore
  15. 2026-07-08 08:48 UTCGHSA enrichment
  16. 2026-07-07 20:20 UTCGHSA enrichment
  17. 2026-07-07 13:42 UTCEPSS rescore
  18. 2026-07-07 08:03 UTCGHSA enrichment
  19. 2026-07-06 18:58 UTCGHSA enrichment
  20. 2026-07-06 16:24 UTCEPSS rescore
  21. 2026-07-06 16:24 UTCEPSS rescore
  22. 2026-07-06 06:25 UTCGHSA enrichment
  23. 2026-07-06 02:20 UTCEPSS rescore
  24. 2026-07-06 02:20 UTCEPSS rescore
  25. 2026-07-05 17:52 UTCGHSA enrichment
  26. 2026-07-05 05:33 UTCGHSA enrichment
  27. 2026-07-04 16:53 UTCGHSA enrichment
  28. 2026-07-04 06:28 UTCEPSS rescore
  29. 2026-07-04 04:24 UTCGHSA enrichment
  30. 2026-07-03 15:39 UTCGHSA enrichment
  31. 2026-07-03 03:21 UTCGHSA enrichment
  32. 2026-07-02 15:04 UTCGHSA enrichment
  33. 2026-07-02 02:45 UTCGHSA enrichment
  34. 2026-07-01 15:02 UTCEPSS rescore
  35. 2026-07-01 14:27 UTCGHSA enrichment
  36. 2026-07-01 02:09 UTCGHSA enrichment
  37. 2026-06-30 13:51 UTCGHSA enrichment
  38. 2026-06-30 01:34 UTCGHSA enrichment
  39. 2026-06-29 14:03 UTCEPSS rescore
  40. 2026-06-29 13:16 UTCGHSA enrichment
  41. 2026-06-29 00:59 UTCGHSA enrichment
  42. 2026-06-28 14:04 UTCEPSS rescore
  43. 2026-06-28 12:41 UTCGHSA enrichment
  44. 2026-06-28 04:53 UTCEPSS rescore
  45. 2026-06-28 00:24 UTCGHSA enrichment
  46. 2026-06-27 11:56 UTCGHSA enrichment
  47. 2026-06-27 03:05 UTCEPSS rescore
  48. 2026-06-27 03:05 UTCEPSS rescore
  49. 2026-06-26 23:38 UTCGHSA enrichment
  50. 2026-06-26 11:19 UTCGHSA enrichment
  51. 2026-06-25 19:59 UTCGHSA enrichment
  52. 2026-06-25 13:47 UTCEPSS rescore
  53. 2026-06-25 13:47 UTCEPSS rescore
  54. 2026-06-25 07:41 UTCGHSA enrichment
  55. 2026-06-24 19:23 UTCGHSA enrichment
  56. 2026-06-24 14:02 UTCEPSS rescore
  57. 2026-06-24 14:02 UTCEPSS rescore
  58. 2026-06-24 07:00 UTCGHSA enrichment
  59. 2026-06-23 21:30 UTCEPSS rescore
  60. 2026-06-23 18:40 UTCGHSA enrichment
  61. 2026-06-23 06:21 UTCGHSA enrichment
  62. 2026-06-22 21:36 UTCNVD updateCVSS v4 → 8.5
  63. 2026-06-22 18:02 UTCGHSA enrichment
  64. 2026-06-22 05:36 UTCGHSA enrichment
  65. 2026-06-21 17:17 UTCGHSA enrichment
  66. 2026-06-21 04:59 UTCGHSA enrichment
  67. 2026-06-20 16:42 UTCGHSA enrichment
  68. 2026-06-20 04:19 UTCGHSA enrichment
  69. 2026-06-19 15:58 UTCEG score recompute
  70. 2026-06-19 15:58 UTCGHSA enrichment

Related CVEs(same CWE)

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 2.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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.

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