EnCase Forensic Edition 4.18a does not support Device Configuration Overlays (DCO), which allows attackers to hide information without detection.

Guidance Software EnCase does not properly handle (1) certain malformed MBR partition tables with many entries, which allows remote attackers to prevent logical collection of a disk image; (2) NTFS filesystems with directory loops, which allows remote attackers to prevent examination of certain directory contents; and (3) certain other malformed NTFS filesystems, which allows remote attackers to prevent examination of corrupted records. NOTE: the vendor disputes the significance of these issues, because physical collection can be used instead, because the vendor believes that relevant attackers typically do not corrupt an MBR or a filesystem, and because detection of a loop is valuable on its own

Guidance Software EnCase allows user-assisted remote attackers to cause a denial of service via (1) a corrupted Microsoft Exchange database, which triggers an application crash when many options are selected; (2) a corrupted NTFS filesystem, which causes the application to report "memory allocation errors;" or (3) deeply nested directories, which trigger an application crash during an Expand All action. NOTE: the vendor disputes the significance of these vectors because the user can select fewer options, there is no operational impact, or the user can do less expansion

Guidance Software EnCase allows user-assisted attackers to trigger a buffer over-read and application crash via a malformed NTFS filesystem containing a modified FILE record with a certain large offset. NOTE: the vendor disputes the significance of this issue, asserting that relevant attackers typically do not corrupt a filesystem, and indicating that the relevant read operation can be disabled