Mozilla Firefox and Thunderbird Incorrect Boundary Conditions Vulnerability in Web Audio Component

Vulnerability

A vulnerability exists in the Web Audio component of Mozilla Firefox and Thunderbird, specifically in versions of Firefox prior to 148, Firefox ESR prior to 115.33 and 140.8, as well as Thunderbird versions prior to 148 and 140.8. This vulnerability is due to incorrect boundary conditions, which can lead to potential exploitation.

Impact

Exploitation of this vulnerability could result in a sandbox escape, allowing malicious content to interact with the underlying system or application in an unauthorized manner.

Remediation

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

Added: Feb 24, 2026, 2:49 PM
Updated: Feb 24, 2026, 10:51 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
1.9
exploitability
4.4
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.