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    CVE-2026-83947

    Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.

    Published:Oct 8, 2026
    Last Modified:Oct 15, 2026
    EPS:Oct 8, 2026
    EPSS Score:0.0037
    CVSS Score:7.7

    Affected Products

    Vendor
    Microsoft
    Product
    Azure Event Grid
    Vendor
    Microsoft
    Product
    Azure Event Grid System

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    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