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    CVE-2026-83780

    Use after free in Windows CCFFilter Driver allows an unauthorized attacker to execute code over a network.

    Published:Oct 13, 2026
    Last Modified:Oct 18, 2026
    EPS:Oct 13, 2026
    EPSS Score:0.00958
    CVSS Score:9.8

    Affected Products

    Vendor
    Microsoft
    Product
    Windows 10 1607
    Vendor
    Microsoft
    Product
    Windows 10 1809
    Vendor
    Microsoft
    Product
    Windows Server 2016
    Vendor
    Microsoft
    Product
    Windows Server 2016 (server Core Installation)
    Vendor
    Microsoft
    Product
    Windows Server 2019
    Vendor
    Microsoft
    Product
    Windows Server 2019 (server Core Installation)
    Vendor
    Microsoft
    Product
    Windows Server 2022
    Vendor
    Microsoft
    Product
    Windows Server 2025
    Vendor
    Microsoft
    Product
    Windows Server 2025 (server Core Installation)

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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