CVE-2025-3032

7.4 HIGH

Published: April 01, 2025 Modified: April 13, 2026

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://bugzilla.mozilla.org/show_bug.cgi?id=1949987

Source: security@mozilla.org

Issue Tracking Permissions Required

https://www.mozilla.org/security/advisories/mfsa2025-20/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-23/

Source: security@mozilla.org

Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score

7.4 / 10.0

EPSS (Exploit Probability)

0.2%

47th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-403

Affected Vendors

mozilla

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