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Mozilla Firefox and Firefox ESR Form Autofill Component Information Disclosure Vulnerability

Vulnerability

A vulnerability allowing information disclosure has been identified in the Form Autofill component of Mozilla Firefox. This issue affects Firefox versions prior to 150 and Firefox ESR versions prior to 140.10. The vulnerability arises from uninitialized memory, which could potentially be exploited to access sensitive information.

Impact

Exploitation of this vulnerability could lead to unauthorized information disclosure.

Remediation

Users can upgrade to Firefox 150 or Firefox ESR 140.10 to address this vulnerability.

Added: Apr 21, 2026, 2:55 PM
Updated: Apr 21, 2026, 2:55 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.6
exploitability
4.4
remediation
7.7
relevance
6.4
threat
0.0
urgency
2.9
incentive
0.0

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