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CVE-2026-4689

Firefox

Description

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

CVSS 10EPSS 0.6649999999999999%Risque 1.06
Voir la source
Publication
2026-03-24 13:16:04
Versions concernées
<149
Type
Core software
Vecteur
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H