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    CVE-2024-2757

    In PHP 8.3.* before 8.3.5, function mb_encode_mimeheader() runs endlessly for some inputs that contain long strings of non-space characters followed by a space. This could lead to a potential DoS attack if a hostile user sends data to an application that uses this function.

    Published:Apr 12, 2024
    Last Modified:Nov 4, 2025
    EPS:Apr 29, 2024
    EPSS Score:0.00625
    CVSS Score:7.5

    Affected Products

    Vendor
    Php
    Product
    Php

    Exploits

    https://github.com/php/php-src/security/advisories/GHSA-fjp9-9hwx-59fqhttps://github.com/php/php-src/security/advisories/GHSA-fjp9-9hwx-59fq

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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