Common Weakness Enumeration

    CWE Definition / CWE-457

    CWE-457: Use of Uninitialized Variable

    The code uses a variable that has not been initialized, leading to unpredictable or unintended results.

    Published:19 Jul 2006
    Organization:MITRE
    Modified:11 Dec 2025

    Related Weakness

    CWE-908: Use of Uninitialized Resource

    CWE-665: Improper Initialization

    CWE-665: Improper Initialization