Patch Development Time for Operating Systems

Of the five operating systems assessed in the last six months of 2007, Microsoft Windows had the shortest average patch development time of six days based on a sample set of 22 patched vulnerabilities. None of the vulnerabilities affected third-party applications. This is shorter than the average patch development time of 18 days in the first six months of 2007, based on a sample set of 38 vulnerabilities, including two vulnerabilities that affected third-party applications.

Source: Symantec Internet Security Threat Report, Vol. XIII