Vulnerability Monitor

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CVE-2025-8300

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.

Published

2025-09-02T20:15:38.863

Last Modified

2025-09-10T15:00:11.357

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.0: 8.8 (HIGH)

Weaknesses
  • Type: Primary
    CWE-122
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application realtek wi-fi_usb_driver < 1030.52.0325.2025 Yes
Hardware realtek rtl8811au - No
References