Understanding and Defending Against CVE-2026-20468: A Local Privilege Escalation Vulnerability in MediaTek Chipsets
This educational analysis delves into CVE-2026-20468, a local privilege escalation vulnerability in MediaTek chipsets, particularly affecting versions MT8196 and MT8366. The vulnerability, caused by a confused deputy issue in the apusys component, allows an attacker with System privileges to escalate their privileges locally, without needing user interaction. We will explore the root cause, attack surface, exploitation mechanics, real-world impact, and defensive strategies to mitigate this threat.