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    CVE-2025-34489

    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.

    Published:Apr 28, 2025
    Last Modified:Nov 19, 2025
    EPS:Apr 28, 2025
    EPSS Score:0.00057
    CVSS Score:7.8

    Affected Products

    Vendor
    Gfi
    Product
    Mailessentials

    Exploits

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

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High