CVE-2025-1941: Lock screen setting bypass in Firefox Focus for Android
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.
Security readout for executives and security teams
Plain-English summary
CVE-2025-1941 is a Mozilla Firefox Focus for Android issue where an opt-in lock screen authentication requirement could be bypassed. Users relying on that setting may have had browser access exposed despite expecting authentication. Mozilla states it was fixed in Firefox 136.
Executive priority
Treat as urgent for organizations using Firefox Focus on Android for privacy-sensitive browsing. The fix is available, but source details are limited, so prioritize patch verification over speculative response actions.
Technical view
The source describes an access-control bypass affecting a Focus setting requiring authentication before use, distinct from CVE-2025-0245. It is mapped to CWE-284 and scored CVSS 9.1 critical with high confidentiality and integrity impact. The bundle does not provide root cause details or exploit mechanics.
Likely exposure
Exposure is most relevant to Android environments using Firefox Focus and relying on its authentication-before-use lock screen setting. The source bundle does not clearly enumerate all affected versions beyond stating the fix was in Firefox 136.
Exploitation context
The bundle does not cite active exploitation, and KEV status is false. Bug details are referenced, but no exploit status, public proof-of-concept, or observed attack reporting is provided in the supplied sources.
Researcher notes
The supplied record is sparse and internally imprecise on affected product/version naming. Analysis should stay anchored to Mozilla’s advisory and CVE text. Do not assume broader Firefox desktop or non-Android exposure without vendor confirmation.
Mitigation direction
Update affected Mozilla Firefox Focus/Firefox Android deployments to the Firefox 136 fixed release or later.
Check Mozilla advisory guidance for exact affected-version and platform details.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
1CVSS vectors
3Timeline events
1ADP providers
3Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total
CVSS vector scores
1 official score
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-284 · source CWE mapping
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.