Improper restriction of write operations within the bounds of a memory buffer in snscore.sys in SoftControl/SafenSoft SysWatch, SoftControl/SafenSoft TPSecure, SoftControl/SafenSoft Enterprise Suite before version 4.4.1 allows local users to cause a denial of service (BSOD) or modify kernel-mode memory via loading of a forged DLL into an user-mode process.