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Vulnerability record · CVE-2023-29534 · published 19 June 2023

CVE-2023-29534: Mozilla firefox focus vulnerability

Mozilla · Firefox Focus

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.

9.1 CVSS 3.1 Critical EPSS 0.71% · top 48.5%
9.1CVSS 3.1 base score
0.71%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
16References
19 Aug 2026Last modified by NVD

Description

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.mozilla.org/show_bug.cgi?id=1816007 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1816059 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1821155 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1821576 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1821906 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1822298 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1822305 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2023-13/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1816007 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1816059 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1821155 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1821576 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1821906 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1822298 Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1822305 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2023-13/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-29534), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.