---
id: CVE-2025-27424
title: >-
  Websites redirecting to a non-HTTP scheme URL could allow a website address to
  be spoofed for a malicious page
summary: >-
  Websites redirecting to a non-HTTP scheme URL could allow a website address to
  be spoofed for a malicious page. This vulnerability was fixed in Firefox for
  iOS 136.
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'
cwe:
  - CWE-601
vendor: mozilla
product: firefox
affected:
  - firefox < 136.0
patched:
  - firefox 136.0
published: '2025-03-04'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T19:10:01.007'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-27424'
references:
  - url: 'https://bugzilla.mozilla.org/show_bug.cgi?id=1945392'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2025-13/'
    label: security@mozilla.org
tags:
  - nvd
epss: 0.0026
epssPercentile: 0.15958
ingestedAt: '2026-09-30T19:21:07.230Z'
---

## Overview

Websites redirecting to a non-HTTP scheme URL could allow a website address to be spoofed for a malicious page. This vulnerability was fixed in Firefox for iOS 136.

## Affected

- `firefox < 136.0`

## Remediation

Upgrade past the affected range:

- `firefox 136.0`