CVE-2025-34491

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://frycos.github.io/vulns4free/2025/04/28/mailessentials.html	Exploit
https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:gfi:mailessentials:*:*:*:*:*:*:*:*

History

10 May 2025, 00:58

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-04-28 20:15

Updated : 2025-05-10 00:58

NVD link : CVE-2025-34491

Mitre link : CVE-2025-34491

CVE.ORG link : CVE-2025-34491

JSON object : View

Products Affected

gfi

mailessentials

CWE

CWE-502

Deserialization of Untrusted Data

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