{"id":"CVE-2001-0500","aliases":["EUVD-2001-0496","GHSA-gcxg-pq25-8wh2"],"status":"published","title":"Buffer overflow in ISAPI extension (idq.dll) in Index Server 2.0 and Indexing Service 2000 in IIS...","description":"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.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.96731,"percentile":0.99886,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2001-07-21T04:00:00Z","modified":"2026-06-16T21:54:25Z","exploits":[{"source":"exploitdb","id":"EDB-16472","title":"Microsoft IIS 5.0 - IDQ Path Overflow (MS01-033) (Metasploit)","type":"remote","platform":"windows","date":"2010-06-15","verified":true,"url":"https://www.exploit-db.com/exploits/16472"},{"source":"exploitdb","id":"EDB-20930","title":"Microsoft Index Server 2.0 / Indexing Service (Windows 2000) - ISAPI Extension Buffer Overflow (PoC)","type":"dos","platform":"windows","date":"2001-06-18","verified":true,"url":"https://www.exploit-db.com/exploits/20930"},{"source":"exploitdb","id":"EDB-20931","title":"Microsoft Index Server 2.0 / Indexing Service (Windows 2000) - ISAPI Extension Buffer Overflow (2)","type":"remote","platform":"windows","date":"2001-06-21","verified":true,"url":"https://www.exploit-db.com/exploits/20931"},{"source":"exploitdb","id":"EDB-20932","title":"Microsoft Index Server 2.0 / Indexing Service (Windows 2000) - ISAPI Extension Buffer Overflow (3)","type":"remote","platform":"windows","date":"2001-06-18","verified":true,"url":"https://www.exploit-db.com/exploits/20932"},{"source":"exploitdb","id":"EDB-20933","title":"Microsoft Index Server 2.0 / Indexing Service (Windows 2000) - ISAPI Extension Buffer Overflow (4)","type":"remote","platform":"windows","date":"2001-06-18","verified":true,"url":"https://www.exploit-db.com/exploits/20933"},{"source":"metasploit","id":"exploit/windows/iis/ms01_033_idq","title":"MS01-033 Microsoft IIS 5.0 IDQ Path Overflow","type":"exploit","platform":"Windows","date":"2001-06-18","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/iis/ms01_033_idq"}],"products":[{"vendor":"microsoft","product":"index_server"},{"vendor":"microsoft","product":"indexing_service"},{"vendor":"microsoft","product":"internet_information_server"}],"references":[{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-033","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/191873","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/bid/2880","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.ciac.org/ciac/bulletins/l-098.shtml","tags":["third-party-advisory","government-resource","x_refsource_CIAC","x_transferred"]},{"url":"http://www.iss.net/security_center/static/6705.php","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A197","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.cert.org/advisories/CA-2001-13.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","Exploit","Patch","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-0500"},{"url":"https://github.com/advisories/GHSA-gcxg-pq25-8wh2"}],"sources":{"cve":[{"id":"CVE-2001-0500","description":"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.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-08T04:21:38.559Z","updated_at":"2026-11-02T14:34:43.032065Z"}],"euvd":[{"id":"EUVD-2001-0496","description":"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.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-08T04:21:38Z","updated_at":"2026-11-03T01:14:51.569576Z"}],"ghsa":[{"id":"GHSA-gcxg-pq25-8wh2","title":"Buffer overflow in ISAPI extension (idq.dll) in Index Server 2.0 and Indexing Service 2000 in IIS...","description":"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.","status":"published","published":"2022-04-30T18:16:11Z","modified":"2023-01-30T05:05:18Z","updated_at":"2026-11-02T14:47:14.398767Z"}],"nvd":[{"id":"CVE-2001-0500","description":"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.","status":"published","published":"2001-07-21T04:00:00Z","modified":"2026-06-16T21:54:25.42Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:40.041412Z"}]}}