Mozilla Firefox and Thunderbird Incorrect Boundary Conditions in WebRTC Component Vulnerability

Vulnerability

A vulnerability exists in the WebRTC: Audio/Video component of Mozilla Firefox and Thunderbird. It arises from incorrect boundary conditions, which could potentially be exploited. This issue affects Firefox versions prior to 148, Firefox ESR versions prior to 115.33 and 140.8, as well as Thunderbird versions prior to 148 and 140.8.

Impact

Exploitation of this vulnerability could lead to a sandbox escape, allowing malicious actions to be performed outside of the intended restrictions.

Remediation

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

Added: Feb 24, 2026, 2:58 PM
Updated: Feb 24, 2026, 11:02 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.