Vulnerability in Mozilla Firefox
CVE-2024-8382
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Firefox Esr
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
- www.mozilla.org/security/advisories/mfsa2024-39/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-40/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-41/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-43/
- www.mozilla.org/security/advisories/mfsa2024-44/
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-8382?
- CVE-2024-8382 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Check for Dropped Privileges. CVSS score: 8.8/10. Published 2024-09-03.
- How severe is CVE-2024-8382?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2024-8382 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.