8.8

CVE-2025-34491

Exploit

GFI MailEssentials < 21.8 MultiNode Insecure Deserialization

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gfi ≫ Mailessentials Version < 21.8
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.74% 0.501
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
disclosure@vulncheck.com 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-502 Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

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
https://www.vulncheck.com/advisories/gfi-mailessentials-multinode-insecure-deserialization