# CVE-2022-40201: Memory corruption in MicroStation Connect

> An attacker can execute arbitrary code by tricking a user into opening a malformed DGN file in MicroStation Connect.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 6 Jan 2023
- **Updated:** 13 Feb 2025
- **Also known as:** GHSA-5j3v-r3rh-6vh7

## What is CVE-2022-40201?

CVE-2022-40201 is a high-severity memory corruption vulnerability in Bentley Microstation Connect, published on 6 Jan 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Bentley Systems MicroStation Connect versions 

10.17.0.209 and prior are vulnerable to a Stack-Based Buffer Overflow when a malformed design (DGN) file is parsed. This may allow an attacker to execute arbitrary code.

Weakness: CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2022-40201?

It affects 1 product.


Products: Bentley Microstation Connect.

## How do I fix CVE-2022-40201?

No fix has been published for CVE-2022-40201 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-40201 being exploited?

There is no known exploitation of CVE-2022-40201 in the wild and no public exploit code.

## Other vulnerabilities in Bentley Microstation Connect

- [CVE-2022-1229](https://insights.sbomify.com/CVE-2022-1229/): Memory corruption in MicroStation CONNECT (high 7.8)
- [CVE-2022-41613](https://insights.sbomify.com/CVE-2022-41613/): Memory corruption in MicroStation Connect (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-40201 and fix it if it is affected.

What it is: CVE-2022-40201 is a high-severity memory corruption vulnerability in Bentley Microstation Connect, published on 6 Jan 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-40201 in the wild and no public exploit code.

Affected product: Bentley Microstation Connect. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-40201/ (Markdown: https://insights.sbomify.com/CVE-2022-40201/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-40201
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-40201
- OSV: https://osv.dev/vulnerability/CVE-2022-40201

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-40201/
Summaries are generated and may contain mistakes; the official description above is the record.