CVE-2023-29534

9.1 criticalEPSS 0.7%

Critical (9.1) in mozilla. EPSS 0.7% chance of exploitation in the next 30 days.

Different techniques existed to obscure the fullscreen notification in Firefox and Focus for Android. These could have led to potential user confusion and spoofing attacks. *This bug only affects Firefox and Focus for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox for Android < 112 and Focus for Android < 112.

Severity

CVSS 3.1

9.1 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
Published: 2023-06-19
Modified: 2026-08-19
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox_focus
mozilla:firefox_mobile

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1816007
https://bugzilla.mozilla.org/show_bug.cgi?id=1816059
https://bugzilla.mozilla.org/show_bug.cgi?id=1821155
https://bugzilla.mozilla.org/show_bug.cgi?id=1821576
https://bugzilla.mozilla.org/show_bug.cgi?id=1821906

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