CVE-2023-44432
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 · uneditedKofax Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kofax Power PDF. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21584.
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 confidenceAn out-of-bounds write vulnerability exists in Kofax Power PDF's PDF file parsing functionality due to insufficient validation of user-supplied data. The flaw allows writing past the end of an allocated buffer during PDF parsing, which can be leveraged to execute arbitrary code in the context of the current process.
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< 5.0.0.15CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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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Confirm Power PDF installationOpen Control Panel > Programs and Features, or check Start Menu for Tungstenautomation Power PDF or Kofax Power PDF entriesAffected if The software is installed on the system
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Locate the installed versionRight-click the Power PDF executable (typically in C:\Program Files\Tungsten Power PDF or C:\Program Files\Kofax), select Properties, and view the Details tab for the Product VersionAffected if No version information is found or the executable does not exist
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Compare against affected versionCompare the installed version number to 5.0.0.15 - any version below 5.0.0.15 is affected (for example, 5.0.0.14, 4.x, 3.x)Affected if The installed version is less than 5.0.0.15
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Identify PDF parsing usage contextCheck if the application has been used to open PDF files, or if browser plugins or integrations are enabled that automatically process PDF filesAffected if PDF files from untrusted sources could be processed by the vulnerable parsing code
The system is affected if Tungstenautomation Power PDF or Kofax Power PDF is installed with any version lower than 5.0.0.15.
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.
dbcve · scoped5.0.0.15
Apply vendor-supplied patches for Kofax Power PDF. Until patched, exercise caution with PDF files from untrusted sources and consider disabling PDF handling in browsers or using sandboxing solutions.
Power PDF version 5.0.0.15 or later
- 1. Determine the current version of Kofax Power PDF installed on the system
- 2. Navigate to the official Kofax website or the vendor's download portal to obtain Power PDF version 5.0.0.15 or later
- 3. Download the installer for the fixed version
- 4. Close all instances of Power PDF and any related applications
- 5. Run the installer and follow the prompts to upgrade Power PDF to version 5.0.0.15 or later
- 6. Restart the system if prompted by the installer
- 7. Verify the installation by checking the updated version number in Power PDF's About section
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-44432 — 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-2023-44432 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