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CVE-2021-32952: An out-of-bounds write issue exists in the DGN file-reading procedure in the Drawings SDK (Version 2022.4 a...

An out-of-bounds write issue exists in the DGN file-reading procedure in the Drawings SDK (Version 2022.4 and prior) resulting from the lack of proper validation of user-supplied data. This can result in a write past the end of an allocated buffer and allow attackers to cause a denial-of-service condition or execute code in the context of the current process.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2021-32952 is a memory corruption flaw in the Drawings SDK DGN file reader. If vulnerable software opens a specially crafted DGN drawing file, the current process could crash or potentially run attacker-controlled code. The bundle does not show active exploitation or a CVSS score.

Executive priority

Treat this as a high-priority exposure where DGN files enter engineering or operational workflows. Business urgency depends on whether vulnerable software processes external drawings; no active exploitation evidence is provided.

Technical view

The issue is a CWE-787 out-of-bounds write in Drawings SDK Version 2022.4 and earlier. The vulnerable DGN parsing path lacks proper validation of user-supplied data, allowing writes beyond an allocated buffer. Impact is denial of service or code execution in the context of the processing application.

Likely exposure

Exposure is most likely where Drawings SDK Version 2022.4 or earlier, or products embedding it, are used to open, import, preview, or convert DGN files from external or untrusted sources.

Exploitation context

The source bundle supports file-based exploitation through a malicious DGN file processed by the vulnerable reader. CISA KEV status is false, and the provided sources do not state active exploitation in the wild.

Researcher notes

Evidence is limited to the CVE description and linked advisories. The core condition is improper validation in DGN parsing leading to an out-of-bounds write. Do not assume broader product impact beyond Drawings SDK or vendor-confirmed embedded uses.

Mitigation direction

  • Inventory products using Drawings SDK and identify versions 2022.4 or earlier.
  • Check vendor advisories for fixed Drawings SDK releases and apply supported updates.
  • Restrict opening DGN files from untrusted senders or uncontrolled file shares.
  • Process external DGN files in isolated, least-privileged environments.
  • Monitor vulnerable applications for crashes during DGN parsing.

Validation and detection

  • Confirm whether Drawings SDK is present directly or embedded in business applications.
  • Verify the installed Drawings SDK version against 2022.4 and earlier.
  • Map workflows that accept DGN files from customers, partners, or public sources.
  • Review vendor advisories for product-specific affected versions and remediation status.
  • Check endpoint telemetry for repeated crashes in DGN-processing applications.
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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-787: Exact CWE lookup

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cve · low confidence lookup

CVE-2021-32952 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 SDKVersion 2022.4 and priorListed
Weakness

CWE details

CWE-787

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

CWE-787 · source CWE mapping

Out-of-bounds Write

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

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