dbcve.org
AutocadApplication · Autodesk

CVE-2024-9826

HIGH · 7.8 CVSS v3.1 Published 2024-10-29
Fix available
A fix is available. Upgrade to 2025.1.1 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 3DM file when parsed in atf_api.dll through Autodesk AutoCAD can force a Use-After-Free vulnerability. A malicious actor can leverage this vulnerability to cause a crash, write 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 Use-After-Free vulnerability exists in atf_api.dll when Autodesk AutoCAD parses maliciously crafted 3DM files. The vulnerability allows a malicious actor to cause a crash, write sensitive data, or execute arbitrary code in the context of the current AutoCAD process.

MitigationApply the vendor patch when available, and in the interim, avoid opening untrusted 3DM files from unknown or untrusted sources. Organizations should maintain current AutoCAD installations and monitor Autodesk security advisories.

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:>= 2025, < 2025.1.1
Autocad Advance SteelApplication
Affected:>= 2025, < 2025.1.1
Autocad ArchitectureApplication
Affected:>= 2025, < 2025.1.1
Autocad Civil 3dApplication
Affected:>= 2025, < 2025.1.1
Autocad ElectricalApplication
Affected:>= 2025, < 2025.1.1
Autocad MechanicalApplication
Affected:>= 2025, < 2025.1.1
Autocad MepApplication
Affected:>= 2025, < 2025.1.1
Autocad Plant 3dApplication
Affected:>= 2025, < 2025.1.1

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 Autodesk product
    Open Windows Settings > Apps > Apps & Features, or use PowerShell: Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion | Where-Object {$_.DisplayName -like '*AutoCAD*' -or '*Advance Steel*' -or '*Civil 3D*' -or '*Electrical*' -or '*Mechanical*' -or '*MEP*' -or '*Plant 3D*' -or '*Architecture*'}
    Affected if Any listed product shows version 2025.x (where x is any build before 2025.1.1)
  2. Verify atf_api.dll version
    Locate atf_api.dll in the AutoCAD installation directory (typically C:\Program Files\Autodesk\AutoCAD 2025\). Right-click the file, select Properties, and check the File Version tab.
    Affected if The DLL exists and the AutoCAD version is 2025.0.x or 2025.1.0 (prior to 2025.1.1)
  3. Confirm 3DM file handling capability
    Check if the atf_api.dll is loaded in AutoCAD by opening Task Manager while AutoCAD is running, going to the Details tab, and looking for atf_api.dll, or check the bin directory for the presence of atf_api.dll
    Affected if The DLL is present in the AutoCAD 2025 installation directory

You are affected if any Autodesk AutoCAD 2025-based product (including vertical products like Civil 3D, Architecture, etc.) is installed with a version lower than 2025.1.1 and the atf_api.dll component is present.

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 2025.1.1 or later
Fixed in 2025.1.1
Interim mitigation

Apply the vendor patch when available, and in the interim, avoid opening untrusted 3DM files from unknown or untrusted sources. Organizations should maintain current AutoCAD installations and monitor Autodesk security advisories.

Recommended fix High confidence

AutoCAD 2025.1.1 (and corresponding versions for AutoCAD Industry products: Advance Steel, Architecture, Civil 3D, Electrical, Mechanical, MEP, Plant 3D)

  1. Verify current AutoCAD version by opening the application and navigating to Help > About AutoCAD
  2. Close all AutoCAD instances and any related services
  3. Back up custom settings, scripts, and any custom files (LISP, ARX, etc.)
  4. Download AutoCAD 2025.1.1 or later from the official Autodesk website (www.autodesk.com) or through your Autodesk Account
  5. Run the installer as an administrator
  6. Follow the on-screen installation prompts to complete the upgrade
  7. After installation, restart AutoCAD and verify that the version shows 2025.1.1 or later
  8. Test critical workflows with 3DM files to ensure normal operation
Caveat Standard upgrade considerations apply - verify compatibility of custom scripts, plugins, and workflows with the new version before production deployment

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

Fix this in Autocad Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,120
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,392.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-9826 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2024-9826 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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