Buffer overflow in ISAPI extension (idq.dll) in Index Server 2.0 and Indexing Service 2000 in IIS 6.0 beta and earlier allows remote attackers to execute arbitrary commands via a long argument to Internet Data Administration (.ida) and Internet Data Query (.idq) files such as default.ida, as commonly exploited by Code Red.

Microsoft Index Server 2.0 in Windows NT 4.0, and Indexing Service in Windows 2000, allows remote attackers to read server-side include files via a malformed search request, aka a new variant of the "Malformed Hit-Highlighting" vulnerability.

The ixsso.query ActiveX Object is marked as safe for scripting, which allows malicious web site operators to embed a script that remotely determines the existence of files on visiting Windows 2000 systems that have Indexing Services enabled.

The CiWebHitsFile component in Microsoft Indexing Services for Windows 2000 allows remote attackers to conduct a cross site scripting (CSS) attack via a CiRestriction parameter in a .htw request, aka the "Indexing Services Cross Site Scripting" vulnerability.