CVE-2017-2821
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 · uneditedAn exploitable use-after-free exists in the PDF parsing functionality of Lexmark Perspective Document Filters 11.3.0.2400 and 11.4.0.2452. A crafted PDF document can lead to a use-after-free resulting in direct code execution.
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 use-after-free vulnerability exists in the PDF parsing functionality of Lexmark Perspective Document Filters versions 11.3.0.2400 and 11.4.0.2452. A specially crafted PDF document can trigger the use-after-free condition, allowing an attacker to achieve direct code execution.
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= 11.3.0.2400= 11.4.0.2452CVSS 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
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/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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Identify if Lexmark Perceptive Document Filters is installedCheck installed programs on Windows (Add/Remove Programs list, or registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall) or Linux package managers (rpm -qa or dpkg -l for packages named 'perceptive' or 'lexmark').Affected if The product Lexmark Perceptive Document Filters is present on the system.
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Determine the installed version numberUse the Windows installer information, check the program's About/Help dialog, or run package queries (rpm -qi or dpkg -s) to retrieve the exact version installed.Affected if The version number matches exactly 11.3.0.2400 or 11.4.0.2452.
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Verify PDF processing capability is in useReview application logs, configuration files, or usage patterns that indicate PDF documents are being processed through Lexmark Document Filters.Affected if PDF parsing or conversion features are actively used or enabled in the environment.
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Confirm the vulnerable binary is loadedIf possible, inspect running processes or loaded libraries for the Lexmark Document Filters PDF parsing component (typically part of the core filter engine).Affected if The PDF parsing module from Lexmark Document Filters is loaded and operational.
A user is affected if Lexmark Perceptive Document Filters version 11.3.0.2400 or 11.4.0.2452 is installed AND PDF processing functionality is enabled or in use.
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 dataApply vendor-supplied patches for Lexmark Perspective Document Filters. If no patch is available, restrict or disable PDF processing capabilities until a fix can be deployed.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-2821 — 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-2017-2821 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
- No spam, self-promotion, credentials, or personal data