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For example, the Excel integer overrun vulnerability disclosed last month would have an Exploitability Index of 2 on the latest software, but 1 on older versions.
According to Maarten Van Horenbeeck, a senior security program manager at Microsoft, 97 of the 256 vulnerabilities disclosed in the last eight months are less serious or not applicable to the latest software versions.
"By giving an assessment of the exploitability and impact, of an issue, we hope to support IT administrators in making rational decisions on which security updates to install first," he said.



















