Privilege escalation in the IPC component. This vulnerability affects Firefox < 149.
https://www.mozilla.org/security/advisories/mfsa2026-20/
https://bugzilla.mozilla.org/show_bug.cgi?id=2010097
Source: Mitre, NVD
Published: 2026-03-24
Updated: 2026-03-24
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
