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    CVE-2026-58649

    Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.

    Published:Sep 8, 2026
    Last Modified:Sep 8, 2026
    EPS:Sep 8, 2026
    EPSS Score:
    CVSS Score:6.5

    Affected Products

    Vendor
    Microsoft
    Product
    .net
    Vendor
    Microsoft
    Product
    Microsoft Visual Studio 2022
    Vendor
    Microsoft
    Product
    Microsoft Visual Studio 2026
    Vendor
    Microsoft
    Product
    Visual Studio 2022
    Vendor
    Microsoft
    Product
    Visual Studio 2026

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-346 Origin Validation Error

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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