Mozilla Firefox and Firefox ESR Incorrect Boundary Conditions Vulnerability in Canvas2D Component

Vulnerability

A vulnerability exists in the Graphics: Canvas2D component of Mozilla Firefox and Firefox ESR. It arises from incorrect boundary conditions, which could potentially be exploited. This issue affects Firefox versions prior to 149, as well as Firefox ESR versions prior to 115.34 and prior to 140.9.

Impact

Exploitation of this vulnerability could lead to a sandbox escape, allowing malicious content to interact with the host environment or access restricted resources.

Remediation

Users can upgrade to Firefox 149 or Firefox ESR 115.34 or 140.9 to address this vulnerability.

Added: Mar 24, 2026, 1:39 PM
Updated: Mar 24, 2026, 1:39 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
1.9
exploitability
4.4
remediation
7.7
relevance
4.6
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.