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Mozilla Firefox and Firefox ESR Mitigation Bypass Vulnerability

Vulnerability

A mitigation bypass vulnerability has been identified in the DOM: Security component of Mozilla Firefox. This issue affects Firefox versions prior to 145 and Firefox ESR versions prior to 140.5.

Impact

Exploitation of this vulnerability bypasses existing security mitigations, potentially leading to unauthorized actions or access within the application.

Remediation

Users can upgrade to Firefox 145 or Firefox ESR 140.5 to address this vulnerability.

Added: Nov 11, 2025, 4:28 PM
Updated: Nov 11, 2025, 4:28 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.6
exploitability
4.4
remediation
7.7
relevance
1.0
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.