The Norton App Lock prior to version 1.3.0.13 can be susceptible to an authentication bypass exploit. In this type of circumstance, the exploit can allow the user to kill the app to prevent it from locking the device, thereby allowing the individual to gain device access.
Comodo Antivirus 12.2.2.8012 has a quarantine flaw that allows privilege escalation. To escalate privilege, a low-privileged attacker can use an NTFS directory junction to restore a malicious DLL from quarantine into the System32 folder.
The GUI functionality for an interactive session in Symantec LiveUpdate 1.70.x through 1.90.x, as used in Norton Internet Security 2001 through 2004, SystemWorks 2001 through 2004, and AntiVirus and Norton AntiVirus Pro 2001 through 2004, AntiVirus for Handhelds v3.0, allows local users to gain SYSTEM privileges.