CVE-2025-8299
BaseFortify
Publication date: 2025-09-02
Last updated on: 2025-09-10
Assigner: Zero Day Initiative
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| realtek | wi-fi_usb_driver | to 1030.52.0325.2025 (exc) |
| realtek | rtl8811au | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-122 | A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-8299 is a heap-based buffer overflow vulnerability in the Realtek rtl81xx SDK Wi-Fi driver, specifically in the MgntActSet_TEREDO_SET_RS_PACKET function. The flaw occurs because the driver does not properly validate the length of user-supplied data before copying it into a fixed-length heap buffer. An attacker who already has the ability to run low-privileged code locally can exploit this vulnerability to escalate their privileges to SYSTEM level, allowing them to execute arbitrary code with full system privileges. [1]
How can this vulnerability impact me? :
This vulnerability can allow a local attacker with low privileges to escalate their privileges to SYSTEM level on an affected system. This means the attacker could gain full control over the system, execute arbitrary code, compromise confidentiality, integrity, and availability of the system, potentially leading to complete system takeover. [1]
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, ensure that you update or patch the Realtek rtl81xx SDK Wi-Fi driver to a version where this heap-based buffer overflow in the MgntActSet_TEREDO_SET_RS_PACKET function is fixed. Since exploitation requires local low-privileged code execution, restricting local access and monitoring for suspicious local activity can also help reduce risk until a patch is applied. [1]