The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The vulnerability potentially allowed an attacker to misuse ESET’s file operations during the removal of a detected file on the Windows operating system to delete files without having proper permissions to do so.

Local privilege escalation vulnerability allowed an attacker to misuse ESET's file operations during a restore operation from quarantine.

Unquoted service path in ESET products allows to drop a prepared program to a specific location and run on boot with the NT AUTHORITY\NetworkService permissions.

Untrusted search path vulnerability in the installers of multiple Canon IT Solutions Inc. software programs (ESET Smart Security Premium, ESET Internet Security, ESET Smart Security, ESET NOD32 Antivirus, DESlock+ Pro, and CompuSec (all programs except packaged ones)) allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.