CVE® International in scope and free for public use, CVE is a dictionary of publicly known information security vulnerabilities and exposures.

CVE’s common identifiers enable data exchange between security products and provide a baseline index point for evaluating coverage of tools and services.

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Technical Guidance & Test Data Available for Updating to the New CVE-ID Format

The format for CVE-IDs changed at the beginning of 2014 and CVE-IDs which previously could only have four fixed digits at the end in the sequence number portion of the ID, e.g., "CVE-2014-0160", can now accommodate five, six, or more digits in the sequence number. Please note, CVE-ID numbers using the new syntax are now being issued, e.g., "CVE-2014-10001" with 5 digits and "CVE-2014-100001" with 6 digits. Organizations that have not updated to the new CVE-ID format risk the possibility that their products and services could break or report inaccurate vulnerability identifiers, which could significantly impact users' vulnerability management practices.

To make it easy to update, the CVE Web site provides free technical guidance and CVE test data for developers and consumers to use to verify that their products and services will work correctly. In addition, for those who use National Vulnerability Database (NVD) data, NIST provides test data in NVD format at

Comments or concerns about this guidance, and/or the test data, is welcome at

Page Last Updated: January 13, 2015