cve/2020/CVE-2020-28011.md

### [CVE-2020-28011](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28011)
![](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

Exim 4 before 4.94.2 allows Heap-based Buffer Overflow in queue_run via two sender options: -R and -S. This may cause privilege escalation from exim to root.

### POC

#### Reference
- https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28011-SPRSS.txt
- https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28011-SPRSS.txt

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