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Mozilla Firefox Memory Safety Vulnerability Allowing Potential Arbitrary Code Execution

Vulnerability

A vulnerability has been identified in Mozilla Firefox and Firefox ESR versions 115.35.1, 140.10.1, and 150.0.1. This vulnerability arises from memory safety issues, some of which indicated memory corruption. It is presumed that, with sufficient effort, these issues could have been exploited to execute arbitrary code.

Impact

Exploitation of this vulnerability could have led to arbitrary code execution.

Remediation

Users can upgrade to Firefox 150.0.2, Firefox ESR 140.10.2, or Firefox ESR 115.35.2 to address this vulnerability.

Added: May 7, 2026, 1:35 PM
Updated: May 7, 2026, 1:35 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
7.5
exploitability
3.6
remediation
7.7
relevance
7.2
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.