CVE-2021-43582
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 · uneditedA Use-After-Free Remote Vulnerability exists when reading a DWG file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DWG files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. 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 confidenceA use-after-free vulnerability exists in Open Design Alliance Drawings SDK versions prior to 2022.11 when parsing DWG files. The SDK fails to validate object existence before performing operations on it during DWG file parsing, allowing an attacker to execute arbitrary code via a specially crafted DWG file processed by the vulnerable SDK.
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< 2022.11CVSS 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.
-
Identify ODA Drawings SDK version in useCheck your application dependencies, build configuration, or deployed SDK binary version metadata. Look for files named 'ODA' or 'Drw' with version info, or check the product/version string returned by the SDK initialization functions.Affected if The SDK version is earlier than 2022.11 (e.g., 2022.10, 2022.9, earlier major versions)
-
Confirm DWG file processing is enabledReview your application code or configuration to verify if the DWG file format reader/module is loaded and actively used. Check for DWG import, preview, or conversion functionality.Affected if Your application loads and uses the DWG reading capability of the ODA Drawings SDK
-
Check for untrusted DWG input handlingIdentify whether your application accepts DWG files from external, untrusted sources such as uploaded files, file transfers, or user-provided paths.Affected if Your application processes DWG files from untrusted or unknown sources without additional sandboxing or validation
You are affected if your deployed application uses a version of ODA Drawings SDK earlier than 2022.11 AND processes DWG files, especially from untrusted sources.
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.
dbcve · scoped2022.11
Update ODA Drawings SDK to version 2022.11 or later to patch the use-after-free vulnerability. Until patched, avoid processing untrusted DWG files with affected SDK versions.
2022.11 or later
- Obtain Drawings SDK version 2022.11 or later from the official vendor (www.opendesign.com)
- Replace the existing SDK installation with the updated version
- Rebuild any applications that link against the Drawings SDK using the new library files
- Retest applications to verify the vulnerability is remediated
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 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 $6,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-43582 — 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-2021-43582 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
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.
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.
- 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