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    CVE-2026-43798

    A single crafted SSH message gives an unauthenticated network attacker an out-of-bounds stack write of attacker-controlled length and content against any application built on swift-nio-ssh. This vulnerability is addressed in swift-nio-ssh version 0.14.1.

    Published:Aug 20, 2026
    Last Modified:Sep 3, 2026
    EPS:Aug 20, 2026
    EPSS Score:0.00337
    CVSS Score:9.8

    Affected Products

    Vendor
    Apple
    Product
    Swiftnio Ssh

    Exploits

    No exploit reference

    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