Hey,
It would be nice if NCM could run the IOS versions it collects from the inventory through the IOS Security Checker and give a report or even an alert when it finds an IOS version with known security issues. Similar to an EOL alert. You can check the IOS version for know vulnerabilities here.
http://tools.cisco.com/security/center/selectIOSVersion.x
I don't know of anything similar for other vendors.