CVE-2025-8298 Information disclosure in RTL8811AU

Low 3.8 Published 2 Sep 2025 Updated 3 Sep 2025

Local attackers can read sensitive kernel memory via an out-of-bounds read in the Realtek RTL8811AU driver, potentially aiding privilege escalation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-8298?

CVE-2025-8298 is a low-severity vulnerability in Realtek RTL8811AU, published on 2 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Realtek RTL8811AU rtwlanu.sys N6CQueryInformationHandleCustomized11nOids Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information 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 N6CQueryInformationHandleCustomized11nOids function. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel. Was ZDI-CAN-25864.

Weakness: CWE-125

Which versions are affected by CVE-2025-8298?

It affects 1 product.

Products include Realtek Wi-Fi Usb Driver.

How do I fix CVE-2025-8298?

No fix has been published for CVE-2025-8298 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-8298 being exploited?

There is no known exploitation of CVE-2025-8298 in the wild and no public exploit code.

Sources

Also known as GHSA-j7g7-r7rp-9v45.