This is actually useful. The Common Vulnerability Scoring System allows companies to realistically interpret a security threat for their organization.
From the article in CNET:
“CVSS goes beyond today’s severity ratings, such as the familiar “critical” and “important” found in security bulletins from Microsoft. The new scoring system, which uses numbers between 1 and 10, enables organizations to calculate the specific risk to their own environment by adding information related to their IT systems. This could help them prioritize patches.”