ActivexApplication · Microsoft

CVE-2008-0078

HIGH · 9.3 CVSS v2.0 Published 2008-02-12
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 an ActiveX control (dxtmsft.dll) in Microsoft Internet Explorer 5.01, 6 SP1 and SP2, and 7 allows remote attackers to execute arbitrary code via a crafted image, aka "Argument Handling Memory Corruption Vulnerability."

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 the dxtmsft.dll ActiveX control in Internet Explorer allows remote code execution via a crafted image due to improper argument handling in the DX Transform filter.

MitigationDisable the vulnerable dxtmsft.dll ActiveX control or apply Microsoft security updates for affected Internet Explorer versions; consider restricting ActiveX execution or deploying updated browser versions.

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
ActivexApplication
Affected:all versions
IeApplication
Affected:= 5.01= 6= 7
Internet ExplorerApplication
Affected:= 6= 7

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. Check Internet Explorer version
    Open IE, go to Help > About Internet Explorer, or run 'reg query "HKLM\SOFTWARE\Microsoft\Internet Explorer" /v Version' in command prompt
    Affected if Version is 5.01, 6.0, or 7.x (the affected versions listed)
  2. Locate dxtmsft.dll on the system
    Search for dxtmsft.dll in the Windows\System32 directory or use: dir /s C:\dxtmsft.dll
    Affected if The file exists (vulnerable ActiveX control is present)
  3. Verify DX Transform ActiveX control is registered
    Check registry key: HKCR\CLSID\{7C6E0295-7C6E-11D1-8C0F-00C04FC295C1} or run 'reg query HKCR\CLSID' to search for the DX Transform control
    Affected if The control is registered in the Windows registry
  4. Check if ActiveX controls are enabled in Internet Explorer
    Open IE > Tools > Internet Options > Security > Custom Level > Enable 'Run ActiveX controls and plugins'
    Affected if ActiveX is enabled (allows the vulnerable control to execute)

User is affected if running IE 5.01, 6, or 7 AND the dxtmsft.dll ActiveX control is present AND ActiveX execution is enabled in the browser settings.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Disable the vulnerable dxtmsft.dll ActiveX control or apply Microsoft security updates for affected Internet Explorer versions; consider restricting ActiveX execution or deploying updated browser versions.

Recommended fix Moderate confidence

Internet Explorer 8 or later (with Windows Update for security patches)

  1. Apply Microsoft Security Update MS08-009 to address the dxtmsft.dll ActiveX control vulnerability in Internet Explorer
  2. Download MS08-009 from the Microsoft Download Center or via Windows Update
  3. Restart the affected system after installing the security update
  4. Verify the update was installed successfully by checking for the patch in Windows Update history
  5. Consider upgrading to a newer version of Internet Explorer to receive ongoing security support
Caveat Legacy applications designed for older Internet Explorer versions may not function properly in newer browser versions

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Activex 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
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2008-0078 — 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-2008-0078 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