MediaTek ADSP OOB Write via Integer Overflow Escalates Privilege
CVE-2026-20572 Published on November 2, 2026
In adsp, there is a possible out of bounds write due to an integer overflow. 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: ALPS11431442; Issue ID: MSV-9924.
Vulnerability Analysis
CVE-2026-20572 is exploitable 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 be very high.
Weakness Type
What is an Integer underflow Vulnerability?
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This can happen in signed and unsigned cases.
CVE-2026-20572 has been classified to as an Integer underflow vulnerability or weakness.
Affected Versions
MediaTek, Inc. MediaTek chipset:- Version MT6858 is affected.
- Version MT6878 is affected.
- Version MT6881 is affected.
- Version MT6897 is affected.
- Version MT6899 is affected.
- Version MT6989 is affected.
- Version MT6991 is affected.
- Version MT6993 is affected.
- Version MT8168 is affected.
- Version MT8186 is affected.
- Version MT8188 is affected.
- Version MT8189 is affected.
- Version MT8195 is affected.
- Version MT8196 is affected.
- Version MT8365 is affected.
- Version MT8367 is affected.
- Version MT8390 is affected.
- Version MT8391 is affected.
- Version MT8668 is affected.
- Version MT8678 is affected.
- Version MT8793 is affected.