CVE-2011-3271

Name of the Vulnerable Software and Affected Versions Cisco IOS versions 12.2 through 15.1

Description A vulnerability exists in the Smart Install feature of Cisco IOS Software, allowing an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service via crafted TCP packets to port 4786. This issue affects Cisco Catalyst Switches.

Recommendations For Cisco IOS versions 12.2 through 15.1, update to a newer version that addresses this vulnerability. As a temporary workaround, consider disabling the Smart Install feature until a patch is available.