10

CVE-2001-0500: microsoft index_server

CVSS: 10.0v2.0HighModified
Published 09-03-2002Last modified 08-08-2024
Open JSON

Vulnerability summary

CVE-2001-0500 is a high (CVSS 10.0) vulnerability in microsoft index_server. EPSS estimates a 96.73% chance of exploitation in the next 30 days, higher than 99.8% of scored vulnerabilities. 7 public exploits are recorded.

Overall risk
90/100
0100
Critical · default modelHow is this calculated?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
96.73%
0%100%
Critical · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits7reference, exploit-database, metasploit

Timeline

  1. 09-03-2002
    PublishedVulnerability first disclosed.
  2. 08-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

96.73%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

+0.06 pp

From 96.67% on 18-09-2026

18-09-202618-10-2026
EPSS score
96.73%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

7 found
  • referenceUnverified

    Exploit Reference (cert.org)

    Maturity: unknown

  • exploit-databasedoswindowsVerified

    Microsoft Index Server 2.0 / Indexing Service (Windows 2000) - ISAPI Extension Buffer Overflow (PoC)

    Maturity: poc

  • exploit-databaseremotewindowsVerified

    Microsoft IIS 5.0 - IDQ Path Overflow (MS01-033) (Metasploit)

    Maturity: weaponized

Show all 7 exploits
  • exploit-databaseremotewindowsVerified

    Microsoft Index Server 2.0 / Indexing Service (Windows 2000) - ISAPI Extension Buffer Overflow (2)

    Maturity: weaponized

  • exploit-databaseremotewindowsVerified

    Microsoft Index Server 2.0 / Indexing Service (Windows 2000) - ISAPI Extension Buffer Overflow (3)

    Maturity: weaponized

  • exploit-databaseremotewindowsVerified

    Microsoft Index Server 2.0 / Indexing Service (Windows 2000) - ISAPI Extension Buffer Overflow (4)

    Maturity: weaponized

  • MetasploitMetasploitremoteVerified

    MS01-033 Microsoft IIS 5.0 IDQ Path Overflow

    exploit/windows/iis/ms01_033_idq

    Maturity: weaponized

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft2 products

1 vendor · 2 products

References

7 links