PT-2025-18105 · Gfi · Gfi Mailessentials

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CVE-2025-34489

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Published

1999-01-01

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Updated

2025-05-10

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions GFI MailEssentials versions prior to 21.8
Description A local privilege escalation issue exists, allowing a local attacker to escalate to NT Authority/SYSTEM by sending a crafted serialized payload to a .NET Remoting Service.
Recommendations For GFI MailEssentials versions prior to 21.8, update to version 21.8 or later to resolve the issue. As a temporary workaround, consider restricting access to the .NET Remoting Service to minimize the risk of exploitation.

Exploit

Fix

LPE

RCE

Deserialization of Untrusted Data

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Weakness Enumeration

Related Identifiers

CVE-2025-34489
DOTNETREMOTINGCHECK

Affected Products

Gfi Mailessentials