CVE-2025-27424: Vulnerability in Mozilla Firefox for iOS
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2025-27424) involves address bar spoofing in Firefox for iOS caused by websites redirecting to URLs with non-HTTP schemes. Such redirects could cause the browser to display a spoofed website address, potentially tricking users into believing they are on a legitimate site when they are not. The issue is related to improper handling of URL schemes during redirection. Mozilla fixed this vulnerability in Firefox for iOS version 136 as documented in their security advisory MFSA 2025-13.
Potential Impact
The impact is moderate as the vulnerability allows an attacker to spoof the website address shown in the browser's address bar, which could facilitate phishing or social engineering attacks. There is no direct impact on confidentiality or availability. No known active exploitation has been reported.
Mitigation Recommendations
Users and administrators should update Firefox for iOS to version 136 or later, where this vulnerability has been fixed. The vendor advisory confirms the issue is resolved in this release. No additional mitigation actions are required beyond applying the official update.
CVE-2025-27424: Vulnerability in Mozilla Firefox for iOS
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-27424) involves address bar spoofing in Firefox for iOS caused by websites redirecting to URLs with non-HTTP schemes. Such redirects could cause the browser to display a spoofed website address, potentially tricking users into believing they are on a legitimate site when they are not. The issue is related to improper handling of URL schemes during redirection. Mozilla fixed this vulnerability in Firefox for iOS version 136 as documented in their security advisory MFSA 2025-13.
Potential Impact
The impact is moderate as the vulnerability allows an attacker to spoof the website address shown in the browser's address bar, which could facilitate phishing or social engineering attacks. There is no direct impact on confidentiality or availability. No known active exploitation has been reported.
Mitigation Recommendations
Users and administrators should update Firefox for iOS to version 136 or later, where this vulnerability has been fixed. The vendor advisory confirms the issue is resolved in this release. No additional mitigation actions are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2025-02-24T20:03:31.187Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2025-13/","vendor":"Mozilla"}]
Threat ID: 69dd057782d89c981f017299
Added to database: 4/13/2026, 3:02:15 PM
Last enriched: 4/13/2026, 3:18:44 PM
Last updated: 4/14/2026, 6:09:16 AM
Views: 6
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