Common Weakness Enumeration

    CWE Definition / CWE-196

    CWE-196: Unsigned to Signed Conversion Error

    The product uses an unsigned primitive and performs a cast to a signed primitive, which can produce an unexpected value if the value of the unsigned primitive can not be represented using a signed primitive.

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

    Related Weakness

    CWE-681: Incorrect Conversion between Numeric Types

    CWE-681: Incorrect Conversion between Numeric Types

    CWE-681: Incorrect Conversion between Numeric Types

    CWE-124: Buffer Underwrite ('Buffer Underflow')

    CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')