Successful exploitation of the vulnerability on Cisco IOS may result in a reload of the device or execution of arbitrary code. Repeated exploitation could result in a sustained [denial of service] attack or execution of arbitrary code.

Successful exploitation of the vulnerability on Cisco IOS may result in a reload of the device or execution of arbitrary code, ... Repeated exploitation could result in a sustained (denial of service) attack or execution of arbitrary code.

Your own rules make you vulnerable to exploitation by those who won't abide by them.

[However, Salomon Smith Barney reiterated its] buy ... We think the fundamentals at Cisco remain strong, its end markets robust, its overall competitive position healthy, and its outlook as an enterprise superb.

Technology in optical networking space is moving incredibly quickly,

discourage its use.