Different techniques existed to obscure the fullscreen notification in Firefox and Focus…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mozilla | Firefox for Android | before 112 | 112 | Patch available | CNA |
| Mozilla | Focus for Android | before 112 | 112 | Patch available | CNA |
Remediation
- Fix · CNA Firefox for Android (Mozilla) Fixed in 112
- Fix · CNA Focus for Android (Mozilla) Fixed in 112
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox for Android, Focus for Android 112
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2023-13914 When recording the screen while in Private Browsing on Firefox for Android the address…Priority LOW 29
Timeline
- 2026-10-02 Threatist record created from CVE-2023-29534
- 2026-10-03 Alias added: GHSA-4g28-wh72-jhwq
References
Other 7
- 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
- https://bugzilla.mozilla.org/show_bug.cgi?id=1822298
- https://bugzilla.mozilla.org/show_bug.cgi?id=1822305
More Mozilla Firefox Focus vulnerabilities
- TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
- TI-2022-09831 Use after free in Mozilla Firefox KEVCVSS 3.1HIGH 8.8
- TI-2023-11015 Authentication bypass by spoofing in Mozilla Firefox CVSS 3.1HIGH 7.5
- TI-2025-34723 Passkey phishing within Bluetooth range CVSS 3.1CRITICAL 9.8
- TI-2024-09702 Improper authentication in Mozilla Focus for iOS CVSS 3.1CRITICAL 9.1
- TI-2026-07862 Protection mechanism failure in Mozilla Firefox CVSS 3.1HIGH 7.5
Sources
- CVE-2023-29534 · CVE Program
- CVE-2023-29534 · NVD
- FIRST EPSS
- GHSA-4g28-wh72-jhwq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences