Vulnerability in Mozilla Firefox

CVE-2024-9392

A compromised content process could have allowed for the arbitrary loading of cross-origin pages. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.

EPSS: 0.005 (41.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-9392?
CVE-2024-9392 is a critical-severity vulnerability in Mozilla Firefox, classified under Origin Validation Error. CVSS score: 9.8/10. Published 2024-10-01.
How severe is CVE-2024-9392?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-9392 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.