CVE-2025-3032
Leaking file descriptors from the fork server
7.4CVSSHIGH
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.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:NAvailabilityNone
Weaknesses
Affected Products
and 26 more affected products View all →
Exploitability
Official Patch Available
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1949987
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-20/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-23/
mozilla.org
and 11 more references View all →
Timeline
Published
Apr 1, 2025
Last Updated
Apr 13, 2026
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