CVEs-PoC/2021/CVE-2021-21772.md

### [CVE-2021-21772](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21772)
![](https://img.shields.io/static/v1?label=Product&message=3MF&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=3MF%20Consortium%20lib3mf%202.0.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=use-after-free&color=brightgreen)

### Description

A use-after-free vulnerability exists in the NMR::COpcPackageReader::releaseZIP() functionality of 3MF Consortium lib3mf 2.0.0. A specially crafted 3MF file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1226

#### Github
- https://github.com/3dluvr/New-lib3mf.dll-for-MeshMixer
- https://github.com/Live-Hack-CVE/CVE-2021-21772