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Mozilla Firefox and Thunderbird Memory Safety Vulnerability Allowing Potential Arbitrary Code Execution

Vulnerability

A vulnerability has been identified in Mozilla Firefox and Thunderbird versions prior to 141, involving memory safety issues that could lead to memory corruption. With sufficient effort, these issues might have been exploited to execute arbitrary code.

Impact

Exploitation of this vulnerability could result in arbitrary code execution.

Remediation

Users can upgrade to Firefox 141 or Thunderbird 141 to address this vulnerability.

Added: Jul 22, 2025, 9:17 PM
Updated: Jul 22, 2025, 9:17 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
10.0
exploitability
4.4
remediation
7.7
relevance
0.3
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.