### [CVE-2007-3803](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3803)
![](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

The SMTP ALG in Clavister CorePlus before 8.80.04, and 8.81.00, does not properly parse SMTP commands in certain circumstances, which allows remote attackers to bypass address blacklists.

### POC

#### Reference
- http://www.clavister.com/releasenotes/CorePlus_Release_Notes_8_80_04.pdf
- http://www.clavister.com/releasenotes/CorePlus_Release_Notes_8_81_01.pdf

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