Panda Security URL Filtering before 4.3.1.9 uses a weak ACL for the "Panda Security URL Filtering" directory and installed files, which allows local users to gain SYSTEM privileges by modifying Panda_URL_Filteringb.exe.
https://www.exploit-db.com/exploits/39670/
http://seclists.org/fulldisclosure/2016/Apr/25
http://packetstormsecurity.com/files/136607/Panda-Security-URL-Filtering-Privilege-Escalation.html