---
id: CVE-2025-0245
title: >-
  Under certain circumstances, a user opt-in setting that Focus should require
  authentication before use could have been be bypassed
summary: >-
  Under certain circumstances, a user opt-in setting that Focus should require
  authentication before use could have been be bypassed. This vulnerability was
  fixed in Firefox 134.
severity: low
cvss: 3.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'
vendor: mozilla
product: firefox
affected:
  - firefox < 134.0
patched:
  - firefox 134.0
published: '2025-01-07'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T19:10:01.007'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-0245'
references:
  - url: 'https://bugzilla.mozilla.org/show_bug.cgi?id=1895342'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2025-01/'
    label: security@mozilla.org
tags:
  - nvd
epss: 0.00287
epssPercentile: 0.19164
ingestedAt: '2026-09-30T19:21:07.220Z'
---

## Overview

Under certain circumstances, a user opt-in setting that Focus should require authentication before use could have been be bypassed. This vulnerability was fixed in Firefox 134.

## Affected

- `firefox < 134.0`

## Remediation

Upgrade past the affected range:

- `firefox 134.0`