Vulnerabilities > CVE-2025-34491 - Deserialization of Untrusted Data vulnerability in GFI Mailessentials
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 30 |