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Mozilla Firefox Memory Corruption Vulnerability in Canvas Operations

Vulnerability

A memory corruption vulnerability has been identified in Mozilla Firefox versions prior to 139.0.4. This issue arises from certain operations on canvas surfaces, which could potentially lead to memory corruption.

Impact

Exploitation of this vulnerability could result in memory corruption, a common precursor to arbitrary code execution or application crashes.

Remediation

Users can upgrade to Mozilla Firefox version 139.0.4 to address this vulnerability.

Added: Jun 11, 2025, 12:20 PM
Updated: Jun 11, 2025, 2:30 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
2.5
exploitability
4.4
remediation
7.7
relevance
0.2
threat
0.0
urgency
2.9
incentive
0.8

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