MediaTek chipset Use-After-Free leading to local privilege escalation
CVE-2026-20473 Published on August 3, 2026
In display, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11019722; Issue ID: MSV-7759.
Vulnerability Analysis
CVE-2026-20473 can be exploited with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
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-2026-20473 has been classified to as a Dangling pointer vulnerability or weakness.
Affected Versions
MediaTek, Inc. MediaTek chipset:- Version MT6991 is affected.
- Version MT6993 is affected.
- Version MT8126 is affected.
- Version MT8171 is affected.
- Version MT8188 is affected.
- Version MT8189 is affected.
- Version MT8367 is affected.
- Version MT8668 is affected.
- Version MT8676 is affected.
- Version MT8678 is affected.
- Version MT8766 is affected.
- Version MT8768 is affected.
- Version MT8781 is affected.
- Version MT8786 is affected.
- Version MT8791T is affected.
- Version MT8799 is affected.
- Version MT8910 is affected.