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Mozilla Firefox JIT Miscompilation Vulnerability in the JavaScript Engine

Vulnerability

A vulnerability has been identified in Mozilla Firefox, specifically in the Just-In-Time (JIT) compilation component of the JavaScript engine. This vulnerability arises from a miscompilation issue, which could potentially be exploited under certain conditions.

Impact

Exploitation of this vulnerability could lead to JIT miscompilation, with potential consequences depending on the specific nature of the miscompilation.

Remediation

Users can upgrade to Firefox version 150.0.3 to address this vulnerability.

Added: May 12, 2026, 2:20 PM
Updated: May 12, 2026, 2:20 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.6
exploitability
4.4
remediation
7.7
relevance
8.1
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.