CVE-2023-7066
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 affected applications contain an out of bounds read past the end of an allocated structure while parsing specially crafted PDF files. This could allow an attacker to execute code in the context of the current process.
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 confidenceThis is an out-of-bounds read vulnerability in PDF parsing functionality. The vulnerability allows reading past the end of an allocated memory structure when parsing specially crafted PDF files, which can leak sensitive memory contents and potentially enable code execution 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.
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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/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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Identify PDF parsing software installedReview installed applications on the system that handle PDF files. Check program directories, installed programs list, or use system inventory tools to list PDF-related software.Affected if The system has any PDF parsing application installed without confirmed vendor security patches for CVE-2023-7066
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Determine the installed PDF software versionAccess the application's About or Help menu, check the executable properties, or use command-line tools like 'dpkg -l', 'rpm -qi', or the application's --version flag if available.Affected if The installed version matches or falls within the range that the vendor has identified as affected by this CVE
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Verify PDF parsing functionality is enabledCheck the application's settings, preferences, or configuration files for PDF import, rendering, or parsing features that may be enabled by default.Affected if PDF parsing features are active and the application has not been patched to address CVE-2023-7066
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Review recent application security updatesCheck the vendor's security advisory page, release notes, or changelog for CVE-2023-7066-specific patches or examine installed security update history.Affected if No vendor-issued security patch for CVE-2023-7066 has been applied to the PDF software
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Inspect logs for PDF-related activityReview application and system logs for evidence of PDF file processing, especially from untrusted or unknown sources, which could trigger the vulnerable code path.Affected if The application processes PDF files and lacks the CVE-2023-7066 security fix
A system is affected if it runs any PDF parsing application with an unpatched version that falls within the affected range for CVE-2023-7066.
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 PDF files from unknown sources. Apply vendor-provided security patches or updates to affected applications as they become available.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-7066 — 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-2023-7066 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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