CVE-2026-20466: MediaTek Chipset Heap Buffer Overflow Vulnerability
A heap buffer overflow vulnerability (CVE-2026-20466) has been identified in MediaTek chipsets, specifically in the secure boot mechanism. This vulnerability could lead to local escalation of privilege if an attacker has physical access to the device. The CVSS score for this vulnerability is 6.1, indicating a medium severity. Affected chipsets include MT2737, MT6880, MT6890, and MT6990. Patches are available to mitigate this vulnerability.