CVE Catalog

CVE-2025-8299

HighCVSS 8.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.15%

4th percentile - higher than 4% of all known CVEs

Summary

The Realtek rtl81xx SDK Wi-Fi driver has a heap-based buffer overflow vulnerability in the MgntActSet_TEREDO_SET_RS_PACKET function, allowing a local attacker to escalate privileges and execute arbitrary code in the context of SYSTEM. Requires prior ability to execute low-privileged code.

Risk Assessment

A local attacker can gain full control over the system, leading to complete security and data confidentiality compromise.

Recommendation

Install the latest Realtek rtl81xx SDK driver from the vendor. Restrict system access for unprivileged users.

Related vulnerabilities

Original NVD description (English source)

Realtek rtl81xx SDK Wi-Fi Driver MgntActSet_TEREDO_SET_RS_PACKET 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 MgntActSet_TEREDO_SET_RS_PACKET 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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS