Vulnerability Database

309,364

Total vulnerabilities in the database

CVE-2025-5269

Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 128.11 and Thunderbird < 128.11.

  • Published: May 27, 2025
  • Updated: Nov 4, 2025
  • CVE: CVE-2025-5269
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.1
  • AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CWEs:

Software From Fixed in
mozilla / firefox - 128.11.0
mozilla / thunderbird - 128.11.0