Verity Ultraseek before 5.7 allows remote attackers to use the server as a proxy for web attacks and host scanning via a direct request to the highlight/index.html script.
Verity Ultraseek before 5.2.2 allows remote attackers to obtain the full pathname of the document root via an MS-DOS device name in the web search option, such as (1) NUL, (2) CON, (3) AUX, (4) COM1, (5) COM2, and others.