CVE-2024-9395

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-01 · updated 2026-06-17

Description

A specially crafted filename containing a large number of spaces could obscure the file's extension when displayed in the download dialog. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 131.

Affected products

Mozilla Firefox: before 131.0 — fixed in 131.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 131.0. Check the vendor advisory for mitigations.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1906024
https://www.mozilla.org/security/advisories/mfsa2024-46/

Get alerted when CVE-2024-9395 or the next vulnerability affects your stack