Yesterday must have been "National Cisco Security Advisory Day" as they released 11 of them:

Cisco Security Advisory: Vulnerability in Cisco IOS While Processing SSL Packet
Advisory ID: cisco-sa-20080924-ssl
http://www.cisco.com/warp/public/707/cisco-sa-20080924-ssl.shtml

Cisco Security Advisory: Cisco IOS IPS Denial of Service Vulnerability
Advisory ID: cisco-sa-20080924-iosips
http://www.cisco.com/warp/public/707/cisco-sa-20080924-iosips.shtml

Cisco Security Advisory: Multiple Multicast Vulnerabilities in Cisco IOS Software
Advisory ID: cisco-sa-20080924-multicast
http://www.cisco.com/warp/public/707/cisco-sa-20080924-multicast.shtml

Cisco Security Advisory: Cisco IOS NAT Skinny Call Control Protocol Vulnerability
Advisory ID: cisco-sa-20080924-sccp
http://www.cisco.com/warp/public/707/cisco-sa-20080924-sccp.shtml

Cisco Security Advisory: Cisco Unified Communications Manager Session Initiation Protocol Denial of Service Vulnerabilities
Advisory ID: cisco-sa-20080924-cucm
http://www.cisco.com/warp/public/707/cisco-sa-20080924-cucm.shtml

Cisco Security Advisory: Cisco uBR10012 Series Devices SNMP Vulnerability
Advisory ID: cisco-sa-20080924-ubr
http://www.cisco.com/warp/public/707/cisco-sa-20080924-ubr.shtml

Cisco Security Advisory: Cisco IOS MPLS VPN May Leak Information
Advisory ID: cisco-sa-20080924-vpn
http://www.cisco.com/warp/public/707/cisco-sa-20080924-vpn.shtml

Cisco Security Advisory: Cisco IOS MPLS Forwarding Infrastructure Denial of Service Vulnerability
Advisory ID: cisco-sa-20080924-mfi
http://www.cisco.com/warp/public/707/cisco-sa-20080924-mfi.shtml

Cisco Security Advisory: Cisco 10000, uBR10012, uBR7200 Series Devices IPC Vulnerability
Advisory ID: cisco-sa-20080924-ipc
http://www.cisco.com/warp/public/707/cisco-sa-20080924-ipc.shtml

Cisco Security Advisory: Cisco IOS Software Firewall Application Inspection Control Vulnerability
Advisory ID: cisco-sa-20080924-iosfw
http://www.cisco.com/warp/public/707/cisco-sa-20080924-iosfw.shtml

Cisco Security Advisory: Cisco IOS Software Layer 2 Tunneling Protocol (L2TP) Denial of Service Vulnerability
Advisory ID: cisco-sa-20080924-l2tp
http://www.cisco.com/warp/public/707/cisco-sa-20080924-l2tp.shtml