MediaTek GPU PDMA UAF causes local privilege escalation on Android
CVE-2026-20558 Published on November 2, 2026
In GPU pdma, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11365070; Issue ID: MSV-9547.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2026-20558 has been classified to as a Dangling pointer vulnerability or weakness.
Affected Versions
MediaTek, Inc. MediaTek chipset:- Version MT6993 is affected.
- Version MT8910 is affected.