CVE-2024-8382

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2024-09-03. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Internal browser event interfaces were exposed to web content when privileged EventHandler listener callbacks ran for those events. Web content that tried to use those interfaces would not be able to use them with elevated privileges, but their presence would indicate certain browser features had been used, such as when a user opened the Dev Tools console. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, Firefox ESR < 115.15, Thunderbird < 128.2, and Thunderbird < 115.15.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
46th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 3, 2024

Last Modified

November 4, 2025

Advisory Details (8)

Auto-updated Aug 24, 2026
Patch available.
genericMentions a patch (unverified)

[SECURITY] [DLA 3882-1] thunderbird security update

https://lists.debian.org/debian-lts-announce/2024/09/msg00025.html
genericMentions a patch (unverified)

[SECURITY] [DLA 3869-1] firefox-esr security update

https://lists.debian.org/debian-lts-announce/2024/09/msg00012.html
generic

Security Vulnerabilities fixed in Thunderbird 115.15 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2024-44/
generic

Security Vulnerabilities fixed in Thunderbird 128.2 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2024-43/
generic

Security Vulnerabilities fixed in Firefox ESR 115.15 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2024-41/
generic

Security Vulnerabilities fixed in Firefox ESR 128.2 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2024-40/
generic

Security Vulnerabilities fixed in Firefox 130 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2024-39/
generic

1906744 - (CVE-2024-8382) ChromeOnly event interfaces become exposed to web content when chromeEventHandler listener callbacks run

https://bugzilla.mozilla.org/show_bug.cgi?id=1906744

Patch Availability(19)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuxul-ext-lightning (1:115.15.0+build1-0ubuntu0.22.04.1) @ jammy2026-05-23ubuntu
ubuntufirefox-mozsymbols (130.0+build2-0ubuntu0.20.04.1) @ focal2026-05-23ubuntu
redhatthunderbird-0:128.2.0-1.el8_62024-09-19redhat
redhatfirefox-0:128.2.0-1.el8_62024-09-19redhat
redhatfirefox-0:128.2.0-1.el7_92024-09-19redhat
redhatfirefox-0:128.2.0-1.el8_82024-09-19redhat
redhatfirefox-0:128.2.0-1.el8_42024-09-19redhat
redhatfirefox-0:128.2.0-1.el8_22024-09-19redhat
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.el9_02024-09-17redhat
redhatthunderbird-0:128.2.0-1.el8_82024-09-17redhat
redhatthunderbird-0:128.2.0-1.el8_22024-09-17redhat
redhatthunderbird-0:128.2.0-1.el8_42024-09-17redhat
redhatthunderbird-0:128.2.0-1.el9_22024-09-17redhat
redhatfirefox-0:128.2.0-1.el9_42024-09-16redhat
redhatthunderbird-0:128.2.0-1.el8_102024-09-16redhat
redhatthunderbird-0:128.2.0-1.el9_42024-09-16redhat
redhatfirefox-0:128.2.0-1.el8_102024-09-16redhat

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

(8 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr102.1.0esr-1 ... 91.9.1esr-1~deb9u1 (169 versions)
  • every version up to 115.15.0esr-1~deb11u1: fixed in 115.15.0esr-1~deb11u1
—
thunderbird1:102.0.1-1 ... 1:91.9.0-1~deb9u1 (203 versions)
  • every version up to 1:115.15.0-1~deb11u1: fixed in 1:115.15.0-1~deb11u1
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr102.11.0esr-1 ... 115.9.1esr-1~deb12u1 (76 versions)
  • every version up to 115.15.0esr-1~deb12u1: fixed in 115.15.0esr-1~deb12u1
—
thunderbird1:102.11.0-1 ... 1:115.9.0-1~deb12u1 (88 versions)
  • every version up to 1:115.15.0-1~deb12u1: fixed in 1:115.15.0-1~deb12u1
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr—
  • every version up to 115.15.0esr-1: fixed in 115.15.0esr-1
—
thunderbird—
  • every version up to 1:128.2.0esr-1: fixed in 1:128.2.0esr-1
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr—
  • every version up to 115.15.0esr-1: fixed in 115.15.0esr-1
—
thunderbird—
  • every version up to 1:128.2.0esr-1: fixed in 1:128.2.0esr-1
—

Weakness Classification(1)

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

All Vendor Advisories

(19)

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 / 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 187 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2024-8382?
CVE-2024-8382 is a high vulnerability published on September 3, 2024. Internal browser event interfaces were exposed to web content when privileged EventHandler listener callbacks ran for those events. Web content that tried to use those interfaces would not be able to use them with elevated privileges, but their presence would indicate certain browser features had…
When was CVE-2024-8382 disclosed?
CVE-2024-8382 was first published on September 3, 2024, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-8382 actively exploited?
CVE-2024-8382 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-8382?
CVE-2024-8382 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2024-8382?
A fix for CVE-2024-8382 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-8382

Explore →

Is Your Infrastructure Affected by CVE-2024-8382?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs