Cisco Adaptive Security Appliances (ASA) devices with firmware 8.4 do not properly validate unspecified input related to UNC share pathnames, which allows remote authenticated users to cause a denial of service (device crash) via unknown vectors, aka Bug ID CSCuc65775.
http://www.securitytracker.com/id/1028009
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2012-6395