# CVE-2025-8298: Information disclosure in RTL8811AU

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

- **Severity:** Low 3.8 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Sep 2025
- **Updated:** 3 Sep 2025
- **Also known as:** GHSA-j7g7-r7rp-9v45

## 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 (Out-of-bounds Read)

## Which versions are affected by CVE-2025-8298?

It affects 1 product.


Products: 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.

## Other vulnerabilities in Realtek RTL8811AU

- [CVE-2025-8299](https://insights.sbomify.com/CVE-2025-8299/): Memory corruption in rtl81xx SDK (high 8.8)
- [CVE-2025-8300](https://insights.sbomify.com/CVE-2025-8300/): Realtek rtl81xx SDK Wi-Fi Driver rtwlanu Heap-based Buffer Overflow Local Privilege Escalation Vulnerability (high 8.8)
- [CVE-2025-8302](https://insights.sbomify.com/CVE-2025-8302/): Realtek rtl81xx SDK Wi-Fi Driver rtwlanu Heap-based Buffer Overflow Local Privilege Escalation Vulnerability (high 8.8)
- [CVE-2025-8301](https://insights.sbomify.com/CVE-2025-8301/): Memory corruption in RTL8811AU (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-8298 and fix it if it is affected.

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

Affected product: Realtek RTL8811AU. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-8298/ (Markdown: https://insights.sbomify.com/CVE-2025-8298/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-8298
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-8298
- OSV: https://osv.dev/vulnerability/CVE-2025-8298

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-8298/
Summaries are generated and may contain mistakes; the official description above is the record.