CVE-2024-8382
Internal browser event interfaces were exposed to web content when privileged EventHandler listener callbacks ran for those events. Web…
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
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.
Timeline
ID reserved
By mozilla
Published
- 14 months later
· 14 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.60% · top 51% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
- Internal event interfaces were exposed to web content when browser EventHandler listener callbacks ran
- CWE-273 Improper Check for Dropped Privileges (opens in a new tab)All about CWE-273 and its CVEs
Affected products
- affected unspecified – < 130
- affected unspecified – < 128.2
- affected unspecified – < 115.15
- affected unspecified – < 128.2
- affected unspecified – < 115.15
References (8)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1906744 (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-39/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-40/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-41/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-43/ (opens in a new tab)
- https://www.mozilla.org/security/advisories/mfsa2024-44/ (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2024/09/msg00025.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2024/09/msg00012.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-8382)Record last updated .