Nsasoft SpotAuditor is an advanced password recovery software from Nsasoft USA Inc. A denial-of-service vulnerability exists in Nsasoft US LLC SpotAuditor version 5.3.5, which is used to recover lost or forgotten passwords for over 40 popular Windows programs and tools. The vulnerability is caused by entering 300 bytes of char data in the βKeyβ or βNameβ field during registration, and the program crashes. An attacker could use this vulnerability to cause the program to crash and cause a denial of service.