cve/2023/CVE-2023-33657.md

### [CVE-2023-33657](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-33657)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

A use-after-free vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function nni_mqtt_msg_get_publish_property() in the file mqtt_msg.c. This vulnerability is caused by improper data tracing, and an attacker could exploit it to cause a denial of service attack.

### POC

#### Reference
- https://github.com/emqx/nanomq/issues/1165#issue-1668648319

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