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AutocadApplication · Autodesk

CVE-2023-27914

HIGH · 7.8 CVSS v3.1 Published 2023-04-14
Fix available
A fix is available. Upgrade to 2023.1.3 or later.
See remediation →
81/100
Remediation priority · High
No privileges

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 · unedited
A maliciously crafted X_B file when parsed through Autodesk® AutoCAD® 2023 can be used to write beyond the allocated buffer causing a Stack Buffer Overflow. A malicious actor can leverage this vulnerability to cause a crash or read sensitive data or execute arbitrary 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 confidence

A stack buffer overflow vulnerability exists in Autodesk AutoCAD 2023 when parsing maliciously crafted X_B files. The vulnerability occurs during file parsing when the application writes beyond the allocated buffer on the stack, potentially allowing an attacker to cause crashes, read sensitive data from memory, or execute arbitrary code in the context of the current process.

MitigationApply the Autodesk security patch for CVE-2023-27914 when available. Until then, avoid opening untrusted X_B files in AutoCAD 2023 and ensure users operate with the minimum privileges necessary.

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
AutocadApplication
Affected:>= 2023, < 2023.1.3
Autocad Advance SteelApplication
Affected:>= 2023, < 2023.1.3
Autocad ArchitectureApplication
Affected:>= 2023, < 2023.1.3
Autocad Civil 3dApplication
Affected:>= 2023, < 2023.1.3
Autocad ElectricalApplication
Affected:>= 2023, < 2023.1.3
Autocad LtApplication
Affected:>= 2023, < 2023.1.3
Autocad Map 3dApplication
Affected:>= 2023, < 2023.1.3
Autocad MechanicalApplication
Affected:>= 2023, < 2023.1.3

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed AutoCAD product
    Open the application and go to Help > About, or check the Windows Programs and Features list to find the exact product name and version number installed
    Affected if The product is one of: AutoCAD, AutoCAD Advance Steel, AutoCAD Architecture, AutoCAD Civil 3D, AutoCAD Electrical, AutoCAD LT, AutoCAD Map 3D, or AutoCAD Mechanical
  2. Compare version against affected range
    Check if the installed version is 2023.x (where x is any update prior to 2023.1.3)
    Affected if The installed version is 2023, 2023.1, 2023.1.1, or 2023.1.2 (any version >= 2023 but < 2023.1.3)
  3. Verify X_B file handling is present
    Confirm the installation includes DWG/associative file parsing capabilities - X_B is a legacy format typically supported in standard AutoCAD installations
    Affected if The application has standard file import capabilities and can potentially open X_B files (this is built-in to affected versions)

You are affected if you have any of the listed AutoCAD 2023 products installed with a version lower than 2023.1.3.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 2023.1.3 or later
Fixed in 2023.1.3
Interim mitigation

Apply the Autodesk security patch for CVE-2023-27914 when available. Until then, avoid opening untrusted X_B files in AutoCAD 2023 and ensure users operate with the minimum privileges necessary.

Recommended fix Moderate confidence

AutoCAD 2023.1.3 (or later) for all affected variants

  1. Back up all critical AutoCAD drawings, templates, and user settings before updating
  2. Navigate to the Autodesk Account or AutoCAD download page at www.autodesk.com
  3. Download AutoCAD 2023 version 2023.1.3 or later (or the corresponding version for your specific AutoCAD variant)
  4. Run the installer as an administrator
  5. Follow the on-screen prompts to complete the installation
  6. Restart AutoCAD after the update completes
  7. Verify the installed version by checking Help > About AutoCAD to confirm version 2023.1.3 or later is installed
Caveat Review Autodesk release notes for 2023.1.3 for any compatibility or feature changes that may affect workflows

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Autocad Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,690
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-27914 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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