New Cisco attacks on the IOS operating system (a Cisco operating system).
http://tools.cisco.com/security/center/viewAlert.x?alertId=40411
There are actually no product vulnerabilities, but just plain old administrative access problems.
What happens if someone gets your admin account on the router?
The hacker will not change routes so you fix it, the hacker will upload a hacker special malware ROMMON image(firmware):
{Cisco PSIRT has contacted customers to describe an evolution in attacks against Cisco IOS Classic platforms. Cisco has observed a limited number of cases where attackers, after gaining administrative or physical access to a Cisco IOS device, replaced the Cisco IOS ROMMON (IOS bootstrap) with a malicious ROMMON image.}
It is always news when Cisco has vulnerabilities since Cisco has the market advantage on routers. But this is an especially simple vulnerability.
If the hacker guesses the admin password or hacks it somehow you are sunk.
Now what can you do to make sure this does not happen?
The answer to headline is no not the routers, but the human element or administrators.
Have you heard of password cracker programs?
It behooves you to test your passwords to make sure they are not easily guessed or cracked.