Common Weakness Enumeration

    CWE Definition / CWE-337

    CWE-337: Predictable Seed in Pseudo-Random Number Generator (PRNG)

    A Pseudo-Random Number Generator (PRNG) is initialized from a predictable seed, such as the process ID or system time.

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

    Related Weakness

    CWE-335: Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)