Vulnerability Database

324,829

Total vulnerabilities in the database

CVE-2026-2807

Memory safety bugs present in Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 148 and Thunderbird < 148.

  • Published: Feb 24, 2026
  • Updated: Feb 26, 2026
  • CVE: CVE-2026-2807
  • 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 - 148.0
mozilla / thunderbird - 148.0