CVE-2007-2240
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 · uneditedThe IBM Lenovo Access Support acpRunner ActiveX control, as distributed in acpcontroller.dll before 1.2.8.0 and possibly acpir.dll before 1.0.0.9 (Automated Solutions 1.0 before fix pack 1), does not properly validate digital signatures of downloaded software, which makes it easier for remote attackers to spoof a download.
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 confidenceThe acpRunner ActiveX control in IBM Lenovo Access Support (acpcontroller.dll before 1.2.8.0) fails to properly validate digital signatures on downloaded software, allowing remote attackers to spoof legitimate downloads and inject malicious code onto affected systems.
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 dataall versions= 1.0CVSS 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
- None
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:M/Au:N/C:N/I:P/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 checksWork through these to decide whether this CVE applies to you.
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Check if Lenovo Access Support is installedOpen Control Panel > Programs and Features and look for 'Lenovo Access Support' or 'Lenovo Automated Solutions', or search for acpcontroller.dll using Windows Explorer searchAffected if Either Lenovo Access Support (any version) or Lenovo Automated Solutions version 1.0 is present on the system
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Locate and identify acpcontroller.dll versionFind acpcontroller.dll in the Lenovo Access Support installation directory (typically in C:\Program Files\Lenovo\Access Support\ or C:\Program Files\IBM\IBM Access Support\), right-click the file, select Properties, and view the Version tabAffected if The file version shown is earlier than 1.2.8.0 or the version field is missing or cannot be determined
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Verify the ActiveX control is registeredOpen Internet Explorer, go to Tools > Manage Add-ons, and look for 'acpRunner' or 'acpController' in the ActiveX controls list, or check the registry under HKLM\SOFTWARE\Microsoft\Code Store Database\SPOOL\ for the control registrationAffected if The acpRunner ActiveX control appears in the list of installed add-ons
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Confirm the vulnerability trigger conditionThis vulnerability is triggered when the ActiveX control processes downloaded software without proper digital signature validation - check if the acpcontroller.dll file exists and is reachable by Internet ExplorerAffected if The acpcontroller.dll file exists and the ActiveX control is enabled in Internet Explorer, allowing it to be invoked by malicious web content
A system is affected if Lenovo Access Support or Lenovo Automated Solutions is installed with acpcontroller.dll version earlier than 1.2.8.0 and the ActiveX control is registered and enabled.
Generated from the published advisory. Verify against your own configuration.
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 dataUpdate acpcontroller.dll to version 1.2.8.0 or later, or disable the vulnerable ActiveX control through Internet Explorer add-on settings or registry restrictions.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2007-2240 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2007-2240 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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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