Posted: February 15th, 2012, 7:35pm PST
Cisco Security Advisory - Cisco NX-OS Software is affected by a denial of service (DoS) vulnerability that could cause Cisco Nexus 1000v, 5000, and 7000 Series Switches that are running affected versions of Cisco NX-OS Software to reload when the IP stack processes a malformed IP packet. Cisco has released free software updates that address this vulnerability.