Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability was fixed in Firefox 137 and Thunderbird 137.
History

Mon, 13 Apr 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


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

Type Values Removed Values Added
Description Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability affects Firefox < 137 and Thunderbird < 137. Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability was fixed in Firefox 137 and Thunderbird 137.
Title thunderbird: firefox: Leaking file descriptors from the fork server Leaking file descriptors from the fork server

Mon, 07 Apr 2025 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Vendors & Products Mozilla
Mozilla firefox
Mozilla thunderbird

Wed, 02 Apr 2025 02:15:00 +0000

Type Values Removed Values Added
Title thunderbird: firefox: Leaking file descriptors from the fork server
Weaknesses CWE-497
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 01 Apr 2025 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-403
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

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


Tue, 01 Apr 2025 12:45:00 +0000

Type Values Removed Values Added
Description Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability affects Firefox < 137 and Thunderbird < 137.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-04-13T14:29:30.510Z

Reserved: 2025-03-31T09:35:27.921Z

Link: CVE-2025-3032

cve-icon Vulnrichment

Updated: 2025-04-01T18:37:13.590Z

cve-icon NVD

Status : Modified

Published: 2025-04-01T13:15:41.587

Modified: 2026-04-13T15:16:56.993

Link: CVE-2025-3032

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-04-01T12:29:03Z

Links: CVE-2025-3032 - Bugzilla

cve-icon OpenCVE Enrichment

No data.