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Mozilla Networking: JAR Component Incorrect Boundary Conditions Vulnerability

Vulnerability

A vulnerability exists in the Networking: JAR component of Firefox and Thunderbird due to incorrect boundary conditions. This issue affects Firefox versions prior to 148, Firefox ESR versions prior to 140.8, Thunderbird versions prior to 148, and Thunderbird ESR versions prior to 140.8.

Impact

Exploitation of this vulnerability could lead to incorrect boundary condition handling, potentially causing unexpected behavior in the application.

Remediation

Users can upgrade to Firefox 148, Firefox ESR 140.8, Thunderbird 148, or Thunderbird ESR 140.8 to address this vulnerability.

Added: Feb 24, 2026, 2:45 PM
Updated: Feb 24, 2026, 10:47 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
1.9
exploitability
4.2
remediation
7.7
relevance
3.1
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.