CWE-686 (使用不正确参数类型的函数调用) — Vulnerability Class 3

CWE-686 represents a logical weakness where a function receives an argument of an incorrect data type, often due to implicit casting or loosely typed language environments. This error typically manifests when developers fail to enforce strict type checking, allowing mismatched variables to pass into routines expecting specific formats. Exploitation usually involves manipulating input to trigger unexpected behavior, such as memory corruption or logic bypasses, particularly when the system performs silent conversions that alter the underlying data structure. To mitigate this risk, developers must implement rigorous input validation and utilize strongly typed languages with explicit casting mechanisms. Enforcing compile-time type checking and adopting static analysis tools can further prevent these mismatches, ensuring that only correctly formatted arguments interact with critical functions, thereby maintaining system integrity and preventing downstream vulnerabilities.