Vulnerability Database

319,897

Total vulnerabilities in the database

CVE-2026-0881

Sandbox escape in the Messaging System component. This vulnerability affects Firefox < 147 and Thunderbird < 147.

  • Published: Jan 13, 2026
  • Updated: Jan 16, 2026
  • CVE: CVE-2026-0881
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 10
  • AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWEs:

OWASP TOP 10:

Software From Fixed in
mozilla / firefox - 147.0
mozilla / thunderbird - 147.0