CVE-2024-8386

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory published 2024-09-03. NVD baseline CVSS 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

A fix is available — apply it.

If a site had been granted the permission to open popup windows, it could cause Select elements to appear on top of another site to perform a spoofing attack. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

September 3, 2024

Last Modified

October 30, 2024

References (6)

Patch Availability(18)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntufirefox-mozsymbols (130.0+build2-0ubuntu0.20.04.1) @ focal2026-05-23ubuntu
redhatfirefox-0:128.2.0-1.el8_42024-09-19redhat
redhatfirefox-0:128.2.0-1.el7_92024-09-19redhat
redhatfirefox-0:128.2.0-1.el8_22024-09-19redhat
redhatfirefox-0:128.2.0-1.el8_62024-09-19redhat
redhatfirefox-0:128.2.0-1.el8_82024-09-19redhat
redhatthunderbird-0:128.2.0-1.el8_62024-09-19redhat
redhatfirefox-0:128.2.0-1.el9_02024-09-18redhat
redhatfirefox-0:128.2.0-1.el9_22024-09-18redhat
redhatthunderbird-0:128.2.0-1.el8_22024-09-17redhat
redhatthunderbird-0:128.2.0-1.el9_22024-09-17redhat
redhatthunderbird-0:128.2.0-1.el8_42024-09-17redhat
redhatthunderbird-0:128.2.0-1.el9_02024-09-17redhat
redhatthunderbird-0:128.2.0-1.el8_82024-09-17redhat
redhatfirefox-0:128.2.0-1.el8_102024-09-16redhat
redhatthunderbird-0:128.2.0-1.el8_102024-09-16redhat
redhatfirefox-0:128.2.0-1.el9_42024-09-16redhat
redhatthunderbird-0:128.2.0-1.el9_42024-09-16redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
thunderbird—1:128.2.0esr-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
thunderbird—1:128.2.0esr-1—

Weakness Classification(2)

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

All Vendor Advisories

(18)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 30× 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 165 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2024-8386?
CVE-2024-8386 is a medium vulnerability published on September 3, 2024. If a site had been granted the permission to open popup windows, it could cause Select elements to appear on top of another site to perform a spoofing attack. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.
When was CVE-2024-8386 disclosed?
CVE-2024-8386 was first published in the National Vulnerability Database on September 3, 2024, with the most recent update on October 30, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-8386 actively exploited?
CVE-2024-8386 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 67.2% of all scored CVEs.
What is the CVSS score of CVE-2024-8386?
CVE-2024-8386 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2024-8386?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-8386, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-8386

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