IOS compromised?

I am little late to this story (did not check the news for the last three days). There have been three critical security holes that have been identified and fix by Cisco.

Obviously the third one (Crafted IP option) is the most serious of the three. (Check out the pictorial representation of the ip options header that is there in Unleash Networks blog ).

The official word is that there are no known cases of these vulnerabilities being exploited but given that its just a week for Cisco’s quarterly earnings release, this kind of a news does not bode well for Cisco.