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CVE-2025-34489

Description

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.

POC

Reference

- https://frycos.github.io/vulns4free/2025/04/28/mailessentials.html

Github

No PoCs found on GitHub currently.