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TI-2001-00492 Aliases CVE-2001-0500GHSA-gcxg-pq25-8wh2

Buffer overflow in ISAPI extension (idq.dll) in Index Server 2.0 and Indexing Service…

Priority CRITICAL 87Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.96731 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:index_server:2.0:*:*:*:*:*:*:*2.0VulnerableMicrosoft
cpe:2.3:a:microsoft:indexing_service:*:*:windows_2000:*:*:*:*:*all versionsVulnerableMicrosoft
cpe:2.3:a:microsoft:internet_information_server:*:beta:*:*:*:*:*:*up to 6.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:index_server:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:indexing_service:*:*:windows_2000:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:internet_information_server:*:beta:*:*:*:*:*:* Versions up to 6.0 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2001-0500
  2. 2026-10-03 Alias added: GHSA-gcxg-pq25-8wh2

References

Exploit 1

Advisory 2

Other 2

  • TI-1999-00961 The Remote Data Service (RDS) DataFactory component of Microsoft Data Access Components… CVSS 2.0HIGH 10.0
  • TI-2000-00302 Microsoft Index Server allows remote attackers to view the source code of ASP files by… CVSS 2.0MEDIUM 5.0
  • TI-2001-00942 SQLQHit.asp sample file in Microsoft Index Server 2.0 allows remote attackers to obtain… CVSS 2.0MEDIUM 5.0
  • TI-2000-00098 Microsoft Index Server allows remote attackers to determine the real path for a web… CVSS 2.0MEDIUM 5.0
  • TI-2000-00097 The WebHits ISAPI filter in Microsoft Index Server allows remote attackers to read… CVSS 2.0MEDIUM 5.0
  • TI-2001-00242 Buffer overflow in Microsoft Index Server 2.0 allows remote attackers to execute… CVSS 2.0HIGH 7.5
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences