Vulnerability Database

324,829

Total vulnerabilities in the database

CVE-2026-2786

Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.

  • Published: Feb 24, 2026
  • Updated: Feb 26, 2026
  • CVE: CVE-2026-2786
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.8
  • AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWEs:

Software From Fixed in
mozilla / firefox - 140.8.0
mozilla / firefox - 148.0
mozilla / thunderbird - 140.8.0
mozilla / thunderbird - 148.0