Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 148 and Thunderbird < 148.

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-2026-2797 POC (Proof-of-Concept) here:

Tip: Download official Tor Browser at https://www.torproject.org/download/ to access .onion links.

Check our portfolio:

https://dnacompany.com/poc-531-cve-2025-61144/

https://dnacompany.com/poc-28-cve-2025-52626/

https://dnacompany.com/poc-401-cve-2026-2409/

https://dnacompany.com/poc-605-cve-2026-2807/

https://dnacompany.com/poc-149-cve-2026-2068/