Mozilla Firefox Executable File Warning Bypass Vulnerability on macOS

Vulnerability

A vulnerability exists in Mozilla Firefox for macOS, specifically in versions prior to 140 and Firefox ESR versions prior to 128.12. The issue arises because the executable file warning does not alert users before opening files with the 'terminal' extension. As a result, users may inadvertently execute potentially harmful files without proper caution.

Impact

Exploitation of this vulnerability could lead to the unintentional execution of malicious executable files, potentially causing harm to the user's system or data.

Remediation

Users can upgrade to Firefox 140 or Firefox ESR 128.12 to address this vulnerability.

Added: Jun 24, 2025, 1:26 PM
Updated: Jun 24, 2025, 1:26 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.0
exploitability
4.4
remediation
7.7
relevance
0.2
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.