CVE-2026-2766
CRITICAL SEVERITYCVSS Score & Metrics
Base Score
9.8 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Description
Use-after-free in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-416
Source
NVD
Vendor
mozilla
Product
firefox
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