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InstallfromthewebApplication · Macrovision

CVE-2007-0320

HIGH · 9.3 CVSS v2.0 Published 2007-02-23
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
Multiple buffer overflows in (a) an ActiveX control (iftw.dll) and (b) Netscape plug-in (npiftw32.dll) for Macrovision (formerly InstallShield) InstallFromTheWeb allow remote attackers to execute arbitrary code via crafted HTML documents.

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

Buffer overflow vulnerabilities in the ActiveX control (iftw.dll) and Netscape plug-in (npiftw32.dll) components of Macrovision InstallFromTheWeb allow remote attackers to execute arbitrary code by tricking users into visiting malicious HTML pages that trigger the overflow.

MitigationDisable or remove the vulnerable InstallFromTheWeb ActiveX control and Netscape plugin from affected systems, or apply vendor patches if available; implement browser-level restrictions to prevent execution of untrusted ActiveX controls.

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
InstallfromthewebApplication
Affected:all versions

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 if InstallFromTheWeb software is installed
    Open Windows Control Panel > Programs and Features (or Add/Remove Programs) and look for 'InstallFromTheWeb', 'Install From The Web', or any Macrovision product with similar naming. Alternatively, check common installation directories like C:\Program Files\InstallFromTheWeb or search for the product name in the registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
    Affected if InstallFromTheWeb or related Macrovision software is present on the system
  2. Locate the vulnerable iftw.dll ActiveX control
    Search the system for the file iftw.dll using Windows Explorer search or the command 'dir /s /b C:\iftw.dll' from an elevated command prompt. Also check typical locations such as C:\Windows\system32\, C:\Program Files\InstallFromTheWeb\, or the installation directory found in the previous step
    Affected if The file iftw.dll exists on the system, indicating the vulnerable ActiveX control is installed
  3. Locate the vulnerable npiftw32.dll Netscape plugin
    Search for npiftw32.dll on the system using Windows Explorer or the command 'dir /s /b C:\npiftw32.dll'. Common locations include C:\Program Files\Netscape\, browser plugin directories, or the InstallFromTheWeb installation folder
    Affected if The file npiftw32.dll exists on the system, indicating the vulnerable Netscape plugin is installed
  4. Verify the ActiveX control is registered in Internet Explorer
    Open Internet Explorer, go to Tools > Manage Add-ons, and look for 'InstallFromTheWeb' or 'iftw' in the list of ActiveX controls. Alternatively, check the Windows registry under HKLM\SOFTWARE\Microsoft\Code Store Database\Distribution Units or HKCU\SOFTWARE\Microsoft\Code Store Database\Distribution Units for entries containing 'iftw' or InstallFromTheWeb
    Affected if The iftw.dll ActiveX control appears in the list of managed add-ons or is found registered in the registry

A system is affected if InstallFromTheWeb software is installed and either iftw.dll or npiftw32.dll files are present on the system, regardless of version.

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

Disable or remove the vulnerable InstallFromTheWeb ActiveX control and Netscape plugin from affected systems, or apply vendor patches if available; implement browser-level restrictions to prevent execution of untrusted ActiveX controls.

Fix this in Installfromtheweb Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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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-2007-0320 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
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