GFI MailEssentials prior to version 21.8 is vulnerable to a local privilege escalation issue. A local attacker can escalate to NT Authority/SYSTEM by sending a crafted serialized payload to a .NET Remoting Service.
https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases
https://frycos.github.io/vulns4free/2025/04/28/mailessentials.html
Source: Mitre, NVD
Published: 2025-04-28
Updated: 2025-05-10
Base Score: 6.8
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00016