Common Weakness Enumeration

    CWE Definition / CWE-331

    CWE-331: Insufficient Entropy

    The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

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

    Related Weakness

    CWE-330: Use of Insufficiently Random Values

    CWE-330: Use of Insufficiently Random Values