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Mozilla Firefox and Firefox ESR Use-After-Free Vulnerability in Audio/Video Component

Vulnerability

A use-after-free vulnerability has been identified in the Audio/Video component of Mozilla Firefox and Firefox ESR. This issue affects Firefox versions prior to 145, as well as Firefox ESR versions prior to 140.5 and prior to 115.30.

Impact

Exploitation of this vulnerability leads to a use-after-free condition, which can commonly result in memory corruption and potentially allow for arbitrary code execution.

Remediation

Users can upgrade to Firefox 145 or Firefox ESR 140.5 or 115.30 to address this vulnerability.

Added: Nov 11, 2025, 4:32 PM
Updated: Nov 11, 2025, 4:32 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
2.5
exploitability
4.4
remediation
7.7
relevance
0.9
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.