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Mozilla Firefox and Thunderbird Memory Safety Vulnerability Allowing Arbitrary Code Execution

Vulnerability

A vulnerability has been identified in Mozilla Firefox versions prior to 134 and Thunderbird versions prior to 134. This vulnerability arises from 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 lead to memory corruption, with the potential to execute arbitrary code.

Remediation

Users can upgrade to Firefox 134 or Thunderbird 134 to address this vulnerability.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
10.0
exploitability
4.4
remediation
7.7
relevance
0.0
threat
0.4
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.