cve/2021/CVE-2021-34980.md

### [CVE-2021-34980](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34980)
![](https://img.shields.io/static/v1?label=Product&message=R6260&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=1.1.0.78_1.0.1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-121%3A%20Stack-based%20Buffer%20Overflow&color=brightgreen)

### Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. When parsing the SOAP_LOGIN_TOKEN environment variable, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14107.

### POC

#### Reference
- https://kb.netgear.com/000064262/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-0150?article=000064262

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