CVE-2025-8299: Realtek rtl81xx SDK Wi-Fi Driver MgntActSet_TEREDO_SET_RS_PACKET Heap-based Buffer Overflow Local Privilege Escalation Vulnerability
Realtek rtl81xx SDK Wi-Fi Driver MgntActSetTEREDOSETRSPACKET 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 MgntActSetTEREDOSETRSPACKET 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-25857.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-8299?
CVE-2025-8299 has a high severity rating due to its potential for local privilege escalation.
How do I fix CVE-2025-8299?
To fix CVE-2025-8299, update to the latest version of the Realtek rtl81xx SDK Wi-Fi driver that addresses this vulnerability.
Who is affected by CVE-2025-8299?
CVE-2025-8299 affects local users of Realtek rtl81xx SDK Wi-Fi drivers on impacted systems.
What type of vulnerability is CVE-2025-8299?
CVE-2025-8299 is a heap-based buffer overflow vulnerability allowing local privilege escalation.
Can CVE-2025-8299 be exploited remotely?
No, CVE-2025-8299 requires local access to the system for exploitation.