Mozilla Firefox for iOS Denial-of-Service Vulnerability via Repetitive JavaScript Alerts

Vulnerability

A denial-of-service vulnerability has been identified in Firefox for iOS versions prior to 142. This issue arises when malicious scripts use repetitive JavaScript alert dialogs, which can disrupt user interaction and, in some cases, lead to denial-of-service conditions.

Impact

Exploitation of this vulnerability can cause denial-of-service conditions by disrupting normal user interaction with the application.

Remediation

Users can upgrade to Firefox for iOS version 142 or later to address this vulnerability.

Added: Aug 19, 2025, 9:34 PM
Updated: Aug 19, 2025, 9:34 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
3.1
exploitability
6.4
remediation
7.7
relevance
0.4
threat
0.0
urgency
2.9
incentive
0.8

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.