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    CVE-2025-59249

    Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

    Published:Oct 14, 2025
    Last Modified:Jun 15, 2026
    EPS:Oct 14, 2025
    EPSS Score:0.00747
    CVSS Score:8.8

    Affected Products

    Vendor
    Microsoft
    Product
    Exchange
    Vendor
    Microsoft
    Product
    Exchange Server
    Vendor
    Microsoft
    Product
    Exchange Server 2016
    Vendor
    Microsoft
    Product
    Exchange Server 2019
    Vendor
    Microsoft
    Product
    Exchange Server Se
    Vendor
    Microsoft
    Product
    Exchange Server Subscription Edition
    Vendor
    Microsoft
    Product
    Exchange Srv

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-1390 Weak Authentication

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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