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Mozilla Firefox and Thunderbird Memory Safety Vulnerability Allowing Arbitrary Code Execution

Vulnerability

A vulnerability exists in Firefox and Thunderbird versions prior to 135, stemming from memory safety issues that could lead to memory corruption. With sufficient effort, these flaws might have been exploited to execute arbitrary code.

Impact

Exploitation of this vulnerability could have resulted in arbitrary code execution.

Remediation

Users can upgrade to Firefox 135 or Thunderbird 135 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
2.5
exploitability
4.4
remediation
7.7
relevance
0.0
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.