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Drawings Software Development KitApplication · Opendesign

CVE-2021-43336

HIGH · 7.8 CVSS v3.1 Published 2021-11-14
Fix available
A fix is available. Upgrade to 12.4.0.13 / 13.3.0.1 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
An Out-of-Bounds Write vulnerability exists when reading a DXF or DWG file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DXF and DWG files. Crafted data in a DXF or DWG file (an invalid number of properties) can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability 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 · high confidence

An out-of-bounds write vulnerability exists in Open Design Alliance Drawings SDK versions prior to 2022.11 when parsing DXF or DWG files. The vulnerability stems from insufficient validation of the number of properties in crafted DXF/DWG files, allowing an attacker to write data past the end of an allocated buffer and achieve code execution in the current process context.

MitigationUpdate Drawings SDK to version 2022.11 or later. Until the update is applied, only open DXF and DWG files from trusted sources and implement file validation before processing.

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
Drawings Software Development KitApplication
Affected:< 2022.11
Jt2goApplication
Affected:all versions
Solid EdgeWeb browser
Affected:= se2022
Teamcenter VisualizationApplication
Affected:>= 12.4.0, < 12.4.0.13>= 13.2.0, < 13.3.0.1= 13.1.0

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 ODA Drawings SDK version
    Locate the ODA Drawings SDK installation or embedded DLLs and check the version information (file properties or product version). Compare against the affected range of versions prior to 2022.11.
    Affected if The installed version is earlier than 2022.11.
  2. Identify Siemens Jt2go version
    Check the installed version of Siemens Jt2go through its About dialog or installed program information.
    Affected if Siemens Jt2go is installed (all versions are affected).
  3. Identify Siemens Solid Edge version
    Check the installed version of Siemens Solid Edge through its About dialog or installed program information.
    Affected if The version is se2022.
  4. Identify Siemens Teamcenter Visualization version
    Check the installed version of Siemens Teamcenter Visualization through its About dialog, installed program information, or product documentation.
    Affected if The version is 12.4.0 through 12.4.0.12, 13.1.0, or 13.2.0 through 13.3.0.0.
  5. Confirm DXF/DWG file processing is in use
    Observe whether the software is configured to open, import, or process DXF or DWG file formats, as this is the attack vector.
    Affected if DXF or DWG file parsing is enabled or used.

You are affected if any vulnerable ODA Drawings SDK version or affected Siemens product version is installed and the software processes DXF/DWG files.

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 12.4.0.13 / 13.3.0.1 / 2022.11 or later
Fixed in 12.4.0.1313.3.0.12022.11
Interim mitigation

Update Drawings SDK to version 2022.11 or later. Until the update is applied, only open DXF and DWG files from trusted sources and implement file validation before processing.

Recommended fix High confidence

Drawings SDK 2022.11 or later (vendor-specific patches for Siemens products)

  1. Obtain the fixed version of Open Design Alliance Drawings SDK (version 2022.11 or later) from the official Open Design Alliance website or your vendor's update channel
  2. Upgrade the Drawings SDK library in your application to version 2022.11 or later
  3. Recompile and rebuild your application with the updated SDK
  4. Test the updated application to confirm the vulnerability is remediated
  5. For Siemens products (Jt2go, Solid Edge se2022, Teamcenter Visualization), apply vendor-supplied patches or updates that incorporate the fixed Drawings SDK version 2022.11 or later
Caveat Review release notes for any API changes between your current version and 2022.11 that may affect your implementation

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

Fix this in Drawings Software Development Kit Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing12.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,760
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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-2021-43336 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