Use-after-free in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Published: 2026-02-24
CVSS: 9.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Download CVE-2026-2766 POC (Proof-of-Concept) here:
Tip: Download official Tor Browser at https://www.torproject.org/download/ to access .onion links.
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https://dnacompany.com/poc-456-cve-2026-2848/
https://dnacompany.com/poc-761-cve-2026-28562/
https://dnacompany.com/poc-630-cve-2026-27626/