{"id":"CVE-2025-6426","title":"The executable file warning did not warn users before opening files with the `terminal` extension","summary":"The executable file warning did not warn users before opening files with the `terminal` extension. \n*This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 140, Firefo…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-345"],"vendor":"mozilla","product":"firefox","affected":["firefox < 128.12.0","firefox < 140.0"],"patched":["firefox 140.0"],"published":"2025-06-24","updated":"2026-09-30","sourceUpdated":"2026-09-30T18:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-6426","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1964385","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-51/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-53/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-54/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-55/","label":"security@mozilla.org"}],"tags":["nvd"],"epss":0.00205,"epssPercentile":0.09416,"ingestedAt":"2026-09-30T18:17:24.443Z","slug":"CVE-2025-6426","body":"## Overview\n\nThe executable file warning did not warn users before opening files with the `terminal` extension. \n*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.\n\n## Affected\n\n- `firefox < 128.12.0`\n- `firefox < 140.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 140.0`","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}