CVE-2025-8301: Realtek RTL8811AU rtwlanu.sys N6CSet_DOT11_CIPHER_DEFAULT_KEY Heap-based Buffer Overflow Local Privilege Escalation Vulnerability
Realtek RTL8811AU rtwlanu.sys N6CSetDOT11CIPHERDEFAULTKEY Heap-based Buffer Overflow Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Realtek RTL8811AU drivers. 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 N6CSetDOT11CIPHERDEFAULTKEY 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-24786.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-8301?
CVE-2025-8301 has been classified as a high severity vulnerability due to its potential for local privilege escalation.
How do I fix CVE-2025-8301?
To fix CVE-2025-8301, ensure that you update the Realtek RTL8811AU driver to the latest version provided by the vendor.
What type of vulnerability is CVE-2025-8301?
CVE-2025-8301 is a heap-based buffer overflow vulnerability that affects the Realtek RTL8811AU driver.
Who is affected by CVE-2025-8301?
Local users of systems with the Realtek RTL8811AU drivers are potentially affected by CVE-2025-8301.
What can an attacker do with CVE-2025-8301?
An attacker exploiting CVE-2025-8301 can escalate their privileges on affected installations of Realtek RTL8811AU drivers.