CVE-2026-20416 | MediaTek MT6991/MT6993/MT8188/MT8678 pcie out-of-bounds write
A vulnerability described as critical has been identified in MediaTek MT6991, MT6993, MT8188 and MT8678. This vulnerability affects unknown code of the component pcie. The manipulation results in out-of-bounds write.
This vulnerability was named CVE-2026-20416. The attack needs to be approached locally. There is no available exploit.
It is best practice to apply a patch to resolve this issue.