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.

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-19102 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 affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12.
Ubuntu USN Ubuntu USN USN-7663-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 13 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
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 affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. 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.

Thu, 30 Oct 2025 16:30:00 +0000

Type Values Removed Values Added
Title firefox: thunderbird: No warning when opening executable terminal files on macOS No warning when opening executable terminal files on macOS

Tue, 15 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00019}

epss

{'score': 0.0002}


Mon, 14 Jul 2025 18:45:00 +0000

Type Values Removed Values Added
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 affects Firefox < 140 and Firefox ESR < 128.12. 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 affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12.
References

Fri, 04 Jul 2025 02:30:00 +0000

Type Values Removed Values Added
Title firefox: No warning when opening executable terminal files on macOS firefox: thunderbird: No warning when opening executable terminal files on macOS

Thu, 03 Jul 2025 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Mozilla
Mozilla firefox
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Mozilla
Mozilla firefox

Wed, 25 Jun 2025 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-345
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Wed, 25 Jun 2025 00:30:00 +0000

Type Values Removed Values Added
Title firefox: No warning when opening executable terminal files on macOS
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

threat_severity

Moderate


Tue, 24 Jun 2025 12:45:00 +0000

Type Values Removed Values Added
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 affects Firefox < 140 and Firefox ESR < 128.12.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-04-13T14:30:40.735Z

Reserved: 2025-06-20T14:51:29.856Z

Link: CVE-2025-6426

cve-icon Vulnrichment

Updated: 2025-06-25T14:21:33.436Z

cve-icon NVD

Status : Modified

Published: 2025-06-24T13:15:23.537

Modified: 2026-04-13T15:17:06.523

Link: CVE-2025-6426

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-06-24T12:28:00Z

Links: CVE-2025-6426 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-07-06T22:16:32Z

Weaknesses