cve/2025/CVE-2025-8300.md

### [CVE-2025-8300](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-8300)
![](https://img.shields.io/static/v1?label=Product&message=rtl81xx%20SDK&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=1030.38.712.2019%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-122%3A%20Heap-based%20Buffer%20Overflow&color=brightgreen)

### Description

Realtek rtl81xx SDK Wi-Fi Driver rtwlanu Heap-based Buffer Overflow Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Realtek rtl81xx SDK Wi-Fi driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.The specific flaw exists within the N6CSet_DOT11_CIPHER_DEFAULT_KEY function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-26552.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cve-scores
- https://github.com/fkie-cad/nvd-json-data-feeds