# CVE-2021-27029: Null dereference in Autodesk FBX Review

> Attackers can cause a denial of service by tricking users into opening malicious FBX files in Autodesk FBX Review.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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:** 19 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-8hfg-jv43-67g2

## What is CVE-2021-27029?

CVE-2021-27029 is a medium-severity vulnerability in Autodesk FBX Review, published on 19 Apr 2021. 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

The user may be tricked into opening a malicious FBX file which may exploit a Null Pointer Dereference vulnerability in FBX's Review version 1.5.0 and prior causing the application to crash leading to a denial of service.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2021-27029?

It affects 1 product.


Products: Autodesk Fbx Review.

## How do I fix CVE-2021-27029?

No fix has been published for CVE-2021-27029 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-27029 being exploited?

There is no known exploitation of CVE-2021-27029 in the wild and no public exploit code.

## Other vulnerabilities in Autodesk FBX Review

- [CVE-2024-23139](https://insights.sbomify.com/CVE-2024-23139/): ActionScript Byte Code “ABC” Vulnerability in the Autodesk FBX Review software (high 7.8)
- [CVE-2022-25794](https://insights.sbomify.com/CVE-2022-25794/): Memory corruption in Autodesk FBX Review (high 7.8)
- [CVE-2021-27044](https://insights.sbomify.com/CVE-2021-27044/): Memory corruption in Autodesk FBX Review (high 7.8)
- [CVE-2021-40157](https://insights.sbomify.com/CVE-2021-40157/): Memory corruption in Autodesk FBX Review (high 7.8)
- [CVE-2021-27027](https://insights.sbomify.com/CVE-2021-27027/): Memory corruption in Autodesk FBX Review (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-27029 and fix it if it is affected.

What it is: CVE-2021-27029 is a medium-severity vulnerability in Autodesk FBX Review, published on 19 Apr 2021. 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-2021-27029 in the wild and no public exploit code.

Affected product: Autodesk FBX Review. 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-2021-27029/ (Markdown: https://insights.sbomify.com/CVE-2021-27029/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-27029
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-27029
- OSV: https://osv.dev/vulnerability/CVE-2021-27029

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-27029/
Summaries are generated and may contain mistakes; the official description above is the record.