Buffer overflow in bctool in Jetico BestCrypt 0.8.1 and earlier allows local users to execute arbitrary code via a file or directory with a long pathname, which is processed during an unmount.

bctool in Jetico BestCrypt 0.7 and earlier trusts the user-supplied PATH to find and execute an fsck utility program, which allows local users to gain privileges by modifying the PATH to point to a Trojan horse program.

BestCrypt BCWipe 1.0.7 and 2.0 through 2.35.1 does not clear Windows alternate data streams that are attached to files on NTFS file systems, which allows attackers to recover sensitive information that was supposed to be deleted.