### [CVE-2021-40125](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40125)
![](https://img.shields.io/static/v1?label=Product&message=Cisco%20Adaptive%20Security%20Appliance%20(ASA)%20Software&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-416&color=brightgreen)

### Description

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/eeenvik1/scripts_for_YouTrack