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    CVE-2025-1218

    The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined behaviour and can crash the process.

    Published:Sep 25, 2026
    Last Modified:Oct 23, 2026
    EPS:Sep 25, 2026
    EPSS Score:0.00182
    CVSS Score:3.4

    Affected Products

    Vendor
    Microsoft
    Product
    Windows
    Vendor
    Php
    Product
    Php
    Vendor
    Php Group
    Product
    Php

    Exploits

    https://github.com/php/php-src/security/advisories/GHSA-r6x9-5r99-36j7

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers
    CAPEC-92 Forced Integer Overflow

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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