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CVE-2021-32940: An out-of-bounds read issue exists in the DWG file-recovering procedure in the Drawings SDK (All versions p...

An out-of-bounds read issue exists in the DWG file-recovering procedure in the Drawings SDK (All versions prior to 2022.5) resulting from the lack of proper validation of user-supplied data. This can result in a read past the end of an allocated buffer and allow attackers to cause a denial-of-service condition or read sensitive information from memory locations.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This vulnerability is a memory-read bug in Drawings SDK when recovering DWG files. A malicious or malformed DWG could make affected software crash, and sources state it may read sensitive memory. Business risk depends on whether your applications embed vulnerable Drawings SDK versions and process untrusted DWG files.

Executive priority

Treat this as a targeted operational risk for environments handling DWG files. Prioritize validation in engineering and document-processing systems, then patch or constrain file intake based on vendor guidance.

Technical view

CVE-2021-32940 is CWE-125 out-of-bounds read in the Drawings SDK DWG file-recovering procedure, caused by insufficient validation of user-supplied data. The bundle lists versions before 2022.4, while the description says before 2022.5, so fixed-version evidence is inconsistent.

Likely exposure

Exposure is most likely where engineering, CAD, PLM, or document workflows use applications embedding Drawings SDK and allow opening or recovering DWG files from external parties.

Exploitation context

The bundle does not show CISA KEV listing or active exploitation evidence. The credible scenario is malicious file processing, leading to denial of service or possible memory disclosure when vulnerable recovery logic handles crafted DWG data.

Researcher notes

Key uncertainty is versioning: the bundle’s affected entry says prior to 2022.4, while the description says prior to 2022.5. No CVSS vector is provided. Do not assert active exploitation from these sources.

Mitigation direction

  • Inventory software and services that embed Drawings SDK for DWG handling.
  • Check vendor advisories for the correct fixed Drawings SDK release.
  • Update affected Drawings SDK deployments once the vendor-fixed version is confirmed.
  • Limit processing of untrusted DWG files until remediation is complete.
  • Route externally supplied DWG files through controlled review workflows.

Validation and detection

  • Confirm deployed Drawings SDK versions in CAD or document-processing applications.
  • Compare installed versions against the vendor advisory’s affected-version range.
  • Review whether DWG recovery is reachable from internet-facing or partner-facing workflows.
  • Check incident logs for unexplained crashes during DWG file processing.
  • Document the version discrepancy between 2022.4 and 2022.5 before closure.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-125: Exact CWE lookup

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cve · low confidence lookup

CVE-2021-32940 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aDrawings SDKAll versions prior to 2022.4Listed
Weakness

CWE details

CWE-125

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-125 · source CWE mapping

Out-of-bounds Read

Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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