CVE-2026-8959
CRITICAL SEVERITYCVSS Score & Metrics
Base Score
9.6 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Vulnerability Description
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-20
Source
NVD
Vendor
mozilla
Product
firefox
Discussion (0)
Add Comment
No comments yet. Be the first!