CVE-2024-4766

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-14 · updated 2026-06-17

Description

Different techniques existed to obscure the fullscreen notification in Firefox for Android. These could have led to potential user confusion and spoofing attacks. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 126.

Affected products

Mozilla Firefox: before 126.0 — fixed in 126.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 126.0. Check the vendor advisory for mitigations.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1871214
https://bugzilla.mozilla.org/show_bug.cgi?id=1871217
https://www.mozilla.org/security/advisories/mfsa2024-21/
https://bugzilla.mozilla.org/show_bug.cgi?id=1871214
https://bugzilla.mozilla.org/show_bug.cgi?id=1871217
https://www.mozilla.org/security/advisories/mfsa2024-21/

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