CVE-2025-6426

HIGH

Firefox < 128.12.0 and 128.12-128.* for macOS - Insufficient Executable File Warning for Terminal Extension

Title source: llm
STIX 2.1

Description

The executable file warning did not warn users before opening files with the `terminal` extension. *This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.

References (5)

Core 5

Scores

CVSS v3 8.8
EPSS 0.0017
EPSS Percentile 7.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-345
Status published
Products (6)
mozilla/firefox < 128.12.0
mozilla/firefox < 140.0
Mozilla/Firefox 128.12 - 128.*
Mozilla/Firefox 140
Mozilla/Thunderbird 128.12 - 128.*
Mozilla/Thunderbird 140
Published Jun 24, 2025
Tracked Since Feb 18, 2026