In Epson iProjection v2.30 the driver file (EMP_NSAU.sys) allows local users to cause a denial of service (BSOD) via crafted input to the virtual audio device driver with IOCTL 0x9C402402 0x9C402406 or 0x9C40240A. \\Device\\EMPNSAUIO and \\DosDevices\\EMPNSAU are similarly affected.