New CNA Scorecard Tool Ranks CVE Data Quality Across the Eco...

The CNA Scorecard is a new tool introduced by security researcher Jerry Gamblin to evaluate the data completeness of CVE records published by CVE Numbering Authorities (CNAs), highlighting significant gaps in crucial fields such as software identifiers and patch information. This development comes amid increased scrutiny over vulnerability metadata quality, exacerbated by the National Vulnerability Database's slowdown, which has shifted the responsibility for data enrichment back to CNAs, many of whom struggle with the task. The scorecard provides a public dashboard that ranks CNAs based on their ability to populate key fields, aiming to improve data quality and accountability without naming and shaming. It reveals that many CNAs focus on enabling patches rather than comprehensive data enrichment, leading to impaired automation and ineffective prioritization for security teams. The tool emphasizes transparency and aims to enhance the utility of CVE records by encouraging higher standards and enforcement of mandatory fields, such as CVSS scores and patch links, to foster better risk assessment and increased trust. The CNA Scorecard is accessible at cnascorecard.org, offering insights into CNA performance and allowing users to gauge the reliability of different data sources.

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