Common Weakness Enumeration

    CWE Definition / CWE-509

    CWE-509: Replicating Malicious Code (Virus or Worm)

    Replicating malicious code, including viruses and worms, will attempt to attack other systems once it has successfully compromised the target system or the product.

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

    Related Weakness

    CWE-507: Trojan Horse