CWE-198 (字节序使用不正确) — Vulnerability Class 1

CWE-198 represents a data interpretation weakness where software fails to account for byte ordering, such as big-endian versus little-endian representations, when processing input from upstream components. This oversight typically leads to incorrect numerical values or data corruption, as the system misinterprets the sequence of bytes. Attackers can exploit this vulnerability by crafting specific inputs that trigger erroneous calculations or logic errors, potentially leading to denial of service, privilege escalation, or data integrity breaches. To mitigate this risk, developers must explicitly define and enforce byte order conventions during data serialization and deserialization processes. Utilizing standardized libraries that handle endianness conversion automatically, validating input formats against expected structures, and implementing rigorous unit tests for cross-platform compatibility are essential strategies to prevent incorrect byte interpretation and ensure robust data handling across diverse hardware architectures.