The NDMP protocol implementation in Symantec Backup Exec 2010 R3 before 2010 R3 SP3 and 2012 before SP2 allows remote authenticated users to obtain sensitive host-version information via unspecified vectors.

Symantec Backup Exec 2010 R3 before 2010 R3 SP3 and 2012 before SP2 uses weak permissions (Everyone: Read and Everyone: Change) for backup data files, which allows local users to obtain sensitive information or modify the outcome of a restore via direct access to these files.

Heap-based buffer overflow in the utility program in the Linux agent in Symantec Backup Exec 2010 R3 before 2010 R3 SP3 and 2012 before SP2 allows remote attackers to cause a denial of service (agent crash) or possibly execute arbitrary code via unspecified vectors.