CVE-2025-34491
GFI MailEssentials < 21.8 MultiNode Insecure Deserialization
HIGH 8.8EPSS 0.9%
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.
- Affected
- GFI · MailEssentials
- CVSS v3.1 NVD
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.95% chance of exploitation in the next 30 days, 61st percentile
- Published
- 2025-04-28
- Updated
- 2025-11-19