CVE-2025-20646 | MediaTek MT6890/MT7915/MT7916/MT7981/MT7986 WLAN AP FW out-of-bounds write (MSV-1803)

A vulnerability classified as critical was found in MediaTek MT6890, MT7915, MT7916, MT7981 and MT7986. Affected by this vulnerability is an unknown functionality of the component WLAN AP FW. The manipulation leads to out-of-bounds write.

This vulnerability is known as CVE-2025-20646. The attack can be launched remotely. There is no exploit available.

It is recommended to apply a patch to fix this issue.