CVEs-PoC/2020/CVE-2020-1913.md

### [CVE-2020-1913](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1913)
![](https://img.shields.io/static/v1?label=Product&message=Hermes&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-195%3A%20Signed%20to%20Unsigned%20Conversion%20Error&color=brighgreen)

### Description

An Integer signedness error in the JavaScript Interpreter in Facebook Hermes prior to commit 2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6 allows attackers to cause a denial of service attack or a potential RCE via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.

### POC

#### Reference
- https://www.facebook.com/security/advisories/cve-2020-1913

#### Github
- https://github.com/404notf0und/CVE-Flow