Incorrect default permissions in the installation directory of WatchDog Anti-Virus on Windows allow local, low-privileged users to modify, replace, or delete antivirus binaries and configuration files, because the installer grants the Users group Full Control over C:\Program Files (x86)\Watchdog Anti-Virus. This may disable antivirus protection or enable privileged code execution if modified binaries are loaded by an elevated WatchDog process.

Improper link resolution before file access in the quarantine restoration process of WatchDog Anti-Virus 1.8.640 on Windows allows local, low-privileged attackers to cause a quarantined file to be written to an arbitrary filesystem location by creating a directory junction at the original file path and persuading an administrator to restore the file. This may enable modification of protected files or SYSTEM-level code execution through DLL hijacking.