Avira AntiVir Premium, Premium Security Suite, AntiVir Professional, and AntiVir Personal - FREE allows local users to execute arbitrary code via a crafted IOCTL request that overwrites a kernel pointer.

unzoo.c, as used in multiple products including AMaViS 2.4.1 and earlier, allows remote attackers to cause a denial of service (infinite loop) via a ZOO archive with a direntry structure that points to a previous file.