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    CVE-2025-57783

    Improper header parsing may lead to request smuggling has been identified in Hiawatha webserver version 11.7 which allows an unauthenticated attacker to access restricted resources managed by Hiawatha webserver.

    Published:Jan 26, 2026
    Last Modified:Feb 18, 2026
    EPS:Jan 26, 2026
    EPSS Score:0.00011
    CVSS Score:5.3

    Affected Products

    Vendor
    Hiawatha
    Product
    Web Server
    Vendor
    Hiawatha-webserver
    Product
    Hiawatha

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    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