Vulnerability Trends Over Time
Warning : Vulnerabilities with publish dates before 1999 are not included in this table and chart. (Because there are not many of them and they make the page look bad; and they may not be actually published in those years.)
Click on legend names to show/hide lines for vulnerability types
This page lists vulnerability statistics for all versions of Cisco IOS. Vulnerability statistics provide a quick overview for security vulnerabilities of this software. You can view versions of this product or security vulnerabilities related to Cisco IOS.