Common Weakness Enumeration

    CWE Definition / CWE-421

    CWE-421: Race Condition During Access to Alternate Channel

    The product opens an alternate channel to communicate with an authorized user, but the channel is accessible to other actors.

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

    Related Weakness

    CWE-420: Unprotected Alternate Channel

    CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')