Buffer overflow in the data management protocol in Symantec Backup Exec for Windows Servers 11.0 (aka 11d) builds 6235 and 7170, 12.0 build 1364, and 12.5 build 2213 allows remote authenticated users to cause a denial of service (application crash) and possibly execute arbitrary code via unknown vectors.  NOTE: this can be exploited by unauthenticated remote attackers by leveraging CVE-2008-5407.