---
id: CVE-2025-54145
title: >-
  The QR scanner could allow arbitrary websites to be opened if a user was
  tricked into scanning a malicious link that leveraged Firefox's open-text URL
  scheme
summary: >-
  The QR scanner could allow arbitrary websites to be opened if a user was
  tricked into scanning a malicious link that leveraged Firefox's open-text URL
  scheme. This vulnerability was fixed in Firefox for iOS 141.
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-601
vendor: mozilla
product: firefox
affected:
  - firefox < 141.0
patched:
  - firefox 141.0
published: '2025-08-19'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T18:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-54145'
references:
  - url: 'https://bugzilla.mozilla.org/show_bug.cgi?id=1946122'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2025-60/'
    label: security@mozilla.org
tags:
  - nvd
epss: 0.00394
epssPercentile: 0.3112
ingestedAt: '2026-09-30T18:17:24.453Z'
---

## Overview

The QR scanner could allow arbitrary websites to be opened if a user was tricked into scanning a malicious link that leveraged Firefox's open-text URL scheme. This vulnerability was fixed in Firefox for iOS 141.

## Affected

- `firefox < 141.0`

## Remediation

Upgrade past the affected range:

- `firefox 141.0`