Vulnerability Database

301,409

Total vulnerabilities in the database

CVE-2025-34491

GFI MailEssentials prior to version 21.8 is vulnerable to a .NET deserialization issue. A remote and authenticated attacker can execute arbitrary code by sending crafted serialized .NET when joining to a Multi-Server setup.

  • Published: Apr 28, 2025
  • Updated: Nov 6, 2025
  • CVE: CVE-2025-34491
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.8
  • AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWEs:

OWASP TOP 10:

Software From Fixed in
gfi / mailessentials - 21.8