CVE-2025-3032 Details
Description
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.
A vulnerability exists in Firefox versions prior to 137 and Thunderbird versions prior to 137, where file descriptors are leaked from the fork server to web content processes. This leak could potentially be exploited to escalate privileges.
Users can upgrade to Firefox 137 or Thunderbird 137 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 2, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1949987 | [email protected] | Issue TrackingPermissions Required |
| https://www.mozilla.org/security/advisories/mfsa2025-20/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-23/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-403 | Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 137.0 |
CPE
Remediation
| |
| mozilla thunderbird | < 137.0 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | CVE Modified | [email protected] |
| Apr 7, 2025 | Initial Analysis | [email protected] |
| Apr 1, 2025 | CVE Modified | CISA-ADP |
| Apr 1, 2025 | New CVE Received | [email protected] |