cve/2021/CVE-2021-40394.md

### [CVE-2021-40394](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40394)
![](https://img.shields.io/static/v1?label=Product&message=Gerbv&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=Gerbv%202.7.0%2CGerbv%20dev%20(commit%20b5f1eacd)%2C%20Gerbv%20forked%20dev%20(commit%2071493260)%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=out%20of%20bounds%20write&color=brightgreen)

### Description

An out-of-bounds write vulnerability exists in the RS-274X aperture macro variables handling functionality of Gerbv 2.7.0 and dev (commit b5f1eacd) and the forked version of Gerbv (commit 71493260). A specially-crafted gerber 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-2021-1404

#### Github
No PoCs found on GitHub currently.