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Internet Information ServicesApplication · Microsoft

CVE-2002-1182

MEDIUM · 5.0 CVSS v2.0 Published 2002-11-12
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
59/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
IIS 5.0 and 5.1 allows remote attackers to cause a denial of service (crash) via malformed WebDAV requests that cause a large amount of memory to be assigned.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

IIS 5.0 and 5.1 contain a denial of service vulnerability where malformed WebDAV requests trigger excessive memory allocation, causing the server to crash. The vulnerability is remotely exploitable and requires no authentication.

MitigationApply the relevant Microsoft security patch for this vulnerability, or upgrade to a supported IIS version. If WebDAV is not required, consider disabling it to reduce attack surface.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Internet Information ServicesApplication
Affected:= 5.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify IIS version
    Run 'iisreset /?' or check the Windows registry key 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W3SVC\Parameters' for 'MajorVersion' or use inetmgr to view the IIS version
    Affected if The version is 5.0 or 5.1 (IIS 5.0/5.1)
  2. Confirm Windows version supporting IIS 5.0/5.1
    Run 'winmsd' or check System Properties to identify the Windows version. IIS 5.0 runs on Windows 2000, IIS 5.1 runs on Windows XP
    Affected if Running Windows 2000 (for IIS 5.0) or Windows XP (for IIS 5.1)
  3. Verify WebDAV is enabled
    Check the IIS Metabase.xml file for the WebDAV component, or open IIS Manager, expand the server name, right-click 'Web Service Extensions', and check if 'WebDAV' is allowed
    Affected if WebDAV extension status is set to Allowed or Enabled

You are affected if you are running IIS version 5.0 or 5.1 on Windows 2000 or Windows XP with WebDAV enabled and the server responds to WebDAV requests.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the relevant Microsoft security patch for this vulnerability, or upgrade to a supported IIS version. If WebDAV is not required, consider disabling it to reduce attack surface.

Fix this in Internet Information Services Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2002-1182 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data