MediaTek Audio HAL PrivEsc via Improper Input Validation
CVE-2026-20512 Published on September 7, 2026
In Audio HAL, there is a possible escalation of privilege due to improper input validation. 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: ALPS11087540; Issue ID: MSV-8246.
Vulnerability Analysis
CVE-2026-20512 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
Improper Restriction of Excessive Authentication Attempts
The software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame, making it more susceptible to brute force attacks.
Affected Versions
MediaTek, Inc. MediaTek chipset:- Version MT2718 is affected.
- Version MT6769 is affected.
- Version MT6781 is affected.
- Version MT6789 is affected.
- Version MT6833 is affected.
- Version MT6835 is affected.
- Version MT6853 is affected.
- Version MT6855 is affected.
- Version MT6858 is affected.
- Version MT6877 is affected.
- Version MT6878 is affected.
- Version MT6881 is affected.
- Version MT6886 is affected.
- Version MT6893 is affected.
- Version MT6895 is affected.
- Version MT6897 is affected.
- Version MT6899 is affected.
- Version MT6989 is affected.
- Version MT6991 is affected.
- Version MT6993 is affected.
- Version MT8126 is affected.
- Version MT8168 is affected.
- Version MT8171 is affected.
- Version MT8186 is affected.
- Version MT8188 is affected.
- Version MT8189 is affected.
- Version MT8195 is affected.
- Version MT8196 is affected.
- Version MT8321 is affected.
- Version MT8365 is affected.
- Version MT8367 is affected.
- Version MT8385 is affected.
- Version MT8390 is affected.
- Version MT8391 is affected.
- Version MT8668 is affected.
- Version MT8676 is affected.
- Version MT8678 is affected.
- Version MT8696 is affected.
- Version MT8755 is affected.
- Version MT8766 is affected.
- Version MT8768 is affected.
- Version MT8771 is affected.
- Version MT8775 is affected.
- Version MT8781 is affected.
- Version MT8786 is affected.
- Version MT8788E is affected.
- Version MT8791T is affected.
- Version MT8792 is affected.
- Version MT8793 is affected.
- Version MT8796 is affected.
- Version MT8797 is affected.
- Version MT8798 is affected.
- Version MT8799 is affected.
- Version MT8873 is affected.
- Version MT8883 is affected.
- Version MT8893 is affected.
- Version MT8910 is affected.