Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability affects Firefox < 147.0.2.
https://www.mozilla.org/security/advisories/mfsa2026-06/
https://bugzilla.mozilla.org/show_bug.cgi?id=2008698
Source: Mitre, NVD
Published: 2026-01-27
Updated: 2026-01-27
Base Score: 9.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N
Severity: High
Base Score: 8.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N