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.

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.