OfficeApplication · Microsoft

CVE-2006-6456

HIGH · 9.3 CVSS v2.0 Published 2006-12-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
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
Unspecified vulnerability in Microsoft Word 2000, 2002, and 2003 and Word Viewer 2003 allows remote attackers to execute code via unspecified vectors related to malformed data structures that trigger memory corruption, a different vulnerability than CVE-2006-5994.

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 · high confidence

Memory corruption vulnerability in Microsoft Word 2000-2003 and Word Viewer 2003 allows remote attackers to execute arbitrary code via malformed data structures in specially crafted Word documents.

MitigationApply Microsoft security updates (MS07-014 or subsequent patches) to affected Office installations, or upgrade to newer Office versions no longer affected by this vulnerability.

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
OfficeApplication
Affected:= 2000= 2003= 2004= xp
WordApplication
Affected:= 2000= 2002= 2003
Word ViewerApplication
Affected:= 2003
WorksApplication
Affected:= 2004= 2005= 2006

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
M
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

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 installed Microsoft Office or Word version
    Open Word, go to Help > About Microsoft Office Word, or check Add/Remove Programs for Microsoft Office installation. Note the exact version number (2000, XP/2002, 2003, 2004).
    Affected if Version is 2000, XP/2002, 2003, or 2004
  2. Check for Microsoft Word Viewer installation
    Check Add/Remove Programs or search for 'Wordview.exe' on the system to determine if Word Viewer 2003 is installed.
    Affected if Microsoft Word Viewer 2003 is installed
  3. Check for Microsoft Works installation
    Check Add/Remove Programs for Microsoft Works Suite versions 2004, 2005, or 2006.
    Affected if Microsoft Works 2004, 2005, or 2006 is installed
  4. Confirm vulnerability trigger condition
    This vulnerability is exploited when a user opens a specially crafted malformed Word document. Check if your organization processes Word documents from untrusted or external sources.
    Affected if Users open Word documents from untrusted or external sources without prior security scanning

You are affected if you have Microsoft Word 2000, 2002, or 2003, Word Viewer 2003, Microsoft Works 2004-2006, or Office versions 2000-2004/XP installed, and users open Word documents from untrusted sources.

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 Microsoft security updates (MS07-014 or subsequent patches) to affected Office installations, or upgrade to newer Office versions no longer affected by this vulnerability.

Fix this in Office Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2006-6456 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2006-6456 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