CVE-2011-4221
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 · uneditedUnspecified vulnerability in Investintech.com Able2Doc and Able2Doc Professional allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted document.
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 confidenceA vulnerability in Investintech.com Able2Doc (and Able2Doc Professional) allows remote attackers to cause denial of service or potentially execute arbitrary code via a crafted document. The 'unspecified' nature suggests a memory corruption issue (likely buffer overflow) when parsing malformed document files.
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 versionsCVSS 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 checksWork through these to decide whether this CVE applies to you.
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Locate Able2Doc executable on the systemSearch for 'Able2Doc.exe' or 'Able2Doc Professional.exe' in common installation directories: C:\Program Files\Investintech\, C:\Program Files (x86)\Investintech\, or use 'where /r C:\ Able2Doc.exe' commandAffected if Able2Doc.exe is found on the system, confirming the software is installed
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Verify installed version of Able2DocRight-click the executable, select Properties, then Details tab to view File Version. Alternatively, check registry key HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ for Investintech entriesAffected if Any version of Able2Doc is reported (all versions are affected)
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Confirm software is operational and can process documentsCheck if the application executable runs and includes document conversion features. Look for file association handlers for .doc, .docx, .pdf, or other document types registered to Able2Doc in the registry under HKCR\.doc\shell\open\commandAffected if Able2Doc is registered to handle or open document files, indicating the vulnerable parsing functionality is active
If Able2Doc or Able2Doc Professional is installed on the system and can process documents, the environment is affected by this vulnerability since all versions contain the memory corruption flaw when parsing crafted documents.
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 dataAvoid opening untrusted or unverified documents with Able2Doc. Apply any available vendor patches promptly. Consider removing or disabling the software if patches are unavailable and the risk is unacceptable.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2011-4221 — 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-2011-4221 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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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.
- 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