CVE-2025-1941: Vulnerability in Mozilla Firefox
Under certain circumstances, a user opt-in setting that Focus should require authentication before use could have been be bypassed (distinct from CVE-2025-0245). This vulnerability was fixed in Firefox 136.
AI Analysis
Technical Summary
This vulnerability involves a bypass of an authentication requirement in Firefox Focus for Android related to a user opt-in lock screen setting. The flaw allowed circumvention of the intended authentication control, potentially exposing the device or data to unauthorized access. The issue was addressed and fixed in Firefox 136. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) indicates the vulnerability is remotely exploitable without privileges or user interaction and can lead to high confidentiality and integrity impact.
Potential Impact
Successful exploitation could allow an attacker to bypass the authentication requirement on Firefox Focus for Android, potentially granting unauthorized access to the browser or sensitive data protected by this setting. The vulnerability does not affect availability. The CVSS score of 9.1 reflects critical impact on confidentiality and integrity.
Mitigation Recommendations
A fix for this vulnerability is available in Firefox version 136. Users and administrators should update Firefox Focus for Android to version 136 or later to remediate this issue. The vendor advisory from Mozilla explicitly states the vulnerability was fixed in this release. No additional mitigation steps are indicated or required beyond applying the official update.
CVE-2025-1941: Vulnerability in Mozilla Firefox
Description
Under certain circumstances, a user opt-in setting that Focus should require authentication before use could have been be bypassed (distinct from CVE-2025-0245). This vulnerability was fixed in Firefox 136.
CVSS v3.1
Score 9.1critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a bypass of an authentication requirement in Firefox Focus for Android related to a user opt-in lock screen setting. The flaw allowed circumvention of the intended authentication control, potentially exposing the device or data to unauthorized access. The issue was addressed and fixed in Firefox 136. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) indicates the vulnerability is remotely exploitable without privileges or user interaction and can lead to high confidentiality and integrity impact.
Potential Impact
Successful exploitation could allow an attacker to bypass the authentication requirement on Firefox Focus for Android, potentially granting unauthorized access to the browser or sensitive data protected by this setting. The vulnerability does not affect availability. The CVSS score of 9.1 reflects critical impact on confidentiality and integrity.
Mitigation Recommendations
A fix for this vulnerability is available in Firefox version 136. Users and administrators should update Firefox Focus for Android to version 136 or later to remediate this issue. The vendor advisory from Mozilla explicitly states the vulnerability was fixed in this release. No additional mitigation steps are indicated or required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2025-03-04T12:29:48.176Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2025-14/","vendor":"Mozilla"}]
Threat ID: 69dd057782d89c981f01727e
Added to database: 04/13/2026, 15:02:15 UTC
Last enriched: 06/04/2026, 19:53:40 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 128
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