cve/2021/CVE-2021-26712.md

### [CVE-2021-26712](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26712)
![](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

Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets.

### POC

#### Reference
- http://packetstormsecurity.com/files/161473/Asterisk-Project-Security-Advisory-AST-2021-003.html

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